Most definitely recommend Cosmos. We ordered the (3) basic burgers, one with tater tots, the other with onion rings and another with regular fries. It was so delicious, mouth watery. Customer service is 1000000% amazing, Kaitlyn is super sweet, the establishment is super clean and inviting. read more

Cosmos Burger - Battered onion rings - Burgers Near Me - Oceanside, California

See all

Came tonight and brought some friends and my son, who missed it the first time we visited. Ordered the Truffle burger (Truffle aioli, caramelized onion, Cheddar cheese, pickles, and 6 oz Cosmos patty with brioche bun), Blue cheese (Herb aioli, caramelized onion, arugula, blue cheese, pickles, and 6 oz Cosmos patty with brioche bun), Better Mac (Think Big Mac...Better Mac sauce, onion, lettuce, Cheddar cheese, pickles, and 6 oz Cosmos patty with brioche bun), Garlic Parm sandwich (Herb aioli, pickles, lettuce, and 2 pieces garlic parm HUGE chicken tenders with brioche bun), and the Hot Chicks sandwich (Herb aioli, pickles, coleslaw, Cheddar cheese, and 2 HUGE pieces spicy tenders with brioche bun), truffle fries were crispy and seasoned well, and tator tots were perfectly crunchy outside and soft inside. The burgers were phenomenal! The blue cheese was sooo good! The truffle burger was incredible! I thought the Better Mac would have been my favorite, and it was still good, but surprisingly, it wasn't my fave over the three. The chicken sandwiches are HUGE but I wished the tenders were tossed in the sauce/seasoning. They add the garlic parm on top of the tenders as they're assembled on top of the bun, so it doesn't completely coat the tender. IMO, it would be more flavorful tossed. However, the aioli sauces are just so delicious and to kill for! Even though this is also a smash burger leave, their burgers aren't thin and had a lot of bite to them! They're so worth it and hands down much better than across the street! read more

2nd time having cosmos counting this evening. A little behind on food reviews but here goes cosmos. This evening was pretty packed with about 20 patrons. We ordered a spicy jam burger,better mac and some truffle fries. Everything came out in a decent time even with many other orders before ours. The better mac named after the (Big Mac) was just that. Similar to the Big Mac just way better. King Mac.The star of the show this evening was the spicy jam burger. Soon as you take a bite you get a sweet and savory taste then 15 seconds later or so the spice comes kicking in and kicking in pretty hard. It's a tasty and interesting burger as I have had nothing like it. Wouldn't recommend if your spice level isn't decently high. The truffle fries are also top notch but eat them quick as they seem to cool rapidly. Our previous visit we had the blue cheese burger. Again another exceptional and tasty burger. We talked with the manager and he was explaining how the recipes are all made from scratch while using the highest quality of ingredients. Great Quality burgers. Definitely give them a try. read more

See all

This is honestly probably our favorite burger spot in downtown Oceanside due to the food itself. The burgers are always SO GOOD! Staff is always very friendly & helpful. The inside of the place is nice and clean, however the outside can be hit or miss. It's located on a busy street which can sometimes be flooded with people. Parking is pretty bad, truly depends what day/time you come but be prepared to walk. read more

Cosmos Burger - Blue Cheese and Spicy Jam - Burgers Near Me - Oceanside, California

My first time eating here an it was delicious. Possibly have a heart attack from the grease and cheese but definitely worth it. Came by in the afternoon and it wasn't busy. Bonus: got a window seat and people watched while eating. I ordered two Better Mac burgers, Monkey fries and two daft beers Me and a friend were having lunch Not a bad price for all of it. Burger was juicy and flavorful The fries crispy and good with bacon and cheese. Definitely nothing was disappointing If I'm in O'side again I'll be hitting this place up read more

Cosmos Burger - Monkey Fries - Burgers Near Me - Oceanside, California

Cosmo Burger. What can I say? Unexpectedly, one of the top 5 burgers in my life. After I finished I had to ask for the manager and compliment the quality of my burger. Atmosphere: 4 Stars. Kind of a trendy vibe. Service: 5 Stars for friendliness. Value: 5 Stars. More expensive than the rest but it was my day off and I wanted to treat myself to something that might be worth it. Quality: 5 Star. It feels expensive and rare but I felt like I got a burger that was worth the money I paid for it. read more

See all

Probably one of the best fried chicken sandwiches I have had at a restaurant and this is not in comparison to like Chick-fil-A or a fast food chicken sandwich, but we're talking about a storefront that really prides itself in burgers. They are actually making an amazing crunchy perfectly sauced with pickles type of chicken sandwich that you can eat and enjoy your meal. The sauces you have a variety from their house sauce to a mustard sauce that's very specific to each of the burgers and sandwiches. I would have to just rave about the unique brioche bun that they use then the sauce that they include inside, which is a mayo type of mix with the pickles and then you have the actual dipping sauce that I don't know how I can describe so overall great place to have lunch and I would say they have a variety of sides like tater tots and french fries and onion rings my friend and I opted for the onion rings and I'm really glad I did because they were very crunchy not overcooked and it was probably not the healthiest meal, but it tasted delicious. read more

See all

Cosmos Burger is a restaurant located in the downtown Oceanside area. There's street parking nearby. It is walkable to the beach and pier. The burgers and fries were pretty good- it's not the cheapest, but still affordable for the portion size and quality. I tried the Cosmos Burger for $13 and the Chicks fries for $12. The burger felt like a standard cheese burger, but the chicks fried is the true stand out for me - the flavors of all components married each other well, and the fries were cooked to perfection. The surrounding areas walking to the restaurant can feel sketchy. Walk with a friend, not alone. There were suspicions characters lurking around the block that called others unkind names. Overall, I recommend coming here for a quick bite when visiting Oceanside. read more

See all

Cosmos Burger ($13) - This is my new favorite North County burger spot. The Cosmos Burger is as close to a perfect burger as it gets. The two patties were perfectly grilled and so tender, flavorful, and juicy. They nailed the caramelized onions and blew me away with their Cosmos sauce, which was like an elevated In-n-Out spread with hints of garlic. Highly, highly recommend! read more

Cosmos Burger - Cosmos Burger - Burgers Near Me - Oceanside, California

Smash burger was delicious and good flavor and size. So many good choices and hard to choose. I tried their tots and they were the best I've had! service was great and friendly. it's right on the main street and has an open air dining area plus bar. This may become my new favorite smash burger place!! read more

Cosmos Burger - Burgers Near Me - Oceanside, California

I had the BBQ burger. It had 2 onion rings, house made bbq sauce, bacon, and cheddar, on a brioche bun. It was absolutely delicious. All the components were perfect and the burger patties were very flavorful and juicy. The monkey fries were tasty as well, with bacon, house sauce, green onion and served with spiced sour cream. Fast service with takeout. Parking is a bit tricky, it's right on a main drag, but I would circle the block a few times, no problem, because the food was kick ass. read more

Cosmos Burger - Bbq burger and Monkey fries. - Burgers Near Me - Oceanside, California

For my taste, this is the best burger in Oceanside. I mentioned this to the counter person once, and he pointed to a certificate hanging on the wall indicating that they apparently received an award for...best burger in San Diego. I love the juicy, flavorful, beefy smashburgers at Cosmos. So far I've had the BBQ Burger, the Blue Cheese Burger, and the Spicy Jam Burger--and loved them all. Absolutely delicious. Great sauces and ingredients (like microgreens) that bring a delightful balance of flavors. I've brought friends with me several times, building Cosmos up as the best burger in town, and though skeptical coming in none argued with me afterwards. They tend to also appreciate that Handel's ice-cream is just a few doors down for after. I've also enjoyed the onion rings and Cosmos fries. I'd rate them just delicious; while they don't stand out as much as those burgers, they're good and I'll keep getting sides when I'm hungry enough. All the staff I've interacted with at Cosmos have been nothing but friendly and helpful. I've felt welcomed and attended to. Near the corner of Mission and Cost Highway, the restaurant is pretty small. The ambiance is stripped down and modern, not the best if you're with a date and want to hang out and talk. I have appreciated the background music (and it is definitely background, not blaring over conversation). The restrooms are shared with other businesses in the building; ask for an access code before heading out the back door to the atrium. There's only street parking and public lots nearby. Often the spots on the street out front are all taken, but I start driving around the block and always find a spot (unless it's Thursday Sunset Market). I've always been able to find a table, though. I love to walk on the Oceanside pier, and consider Cosmos walking distance to the pier. In-N-Out might beat Cosmos when it comes for value--I can get 3-4 fine cheeseburgers there for the price of one burger at Cosmos--but if you're looking for the better tasting burger, choose Cosmos. read more

The crisp of the chicken was perfect. Not oily, chicken was moist. The sauce had a slight kick to it. Not too spicey but enough to give it the right flavor.we got the hot chicken combo. The fries are string fries. Nicely cooked and crisp. I have to say better than McDonalds! they do sell beer and a spritzer type of wine. I got the guava strawberry. It was very refreshing and only 5.5% alcohol. The ambience is low key. You definitely feel like you're definitely in the neighborhood But, the food is worth it! I am definitely going to come back! read more

Best burger in North County! The staff is always friendly and welcoming, the building and seating are accessible in my walker/wheelchair, and the food is always delicious! I recommend the Better Mac or the Blue Cheese, and treat yourself to the truffle fries! You won't regret it :)! read more

We've heard multiple reports that Cosmos has the best burger in San Diego and had to check it out for ourselves. There are two locations but we wanted to visit the Oceanside location since I was wary of the quality of the Carlsbad food court location. We arrived late in the afternoon on a Saturday and managed to snag street parking right in front of the restaurant. They don't have a dedicated lot so you might have to circle around the block during peak hours. The restaurant itself is kind of small with a handful of tables and counter seats. I like that the windows all have high-top tables and you could people watch while eating. We ordered a lot for two people to try as much as we could. The food came out really fast but I wonder if that's the norm or if it was just because we were the only customers. Everything is brought out to your table and on pretty aesthetic-looking plates so the vibes felt a little classier than a fast food restaurant. Tater Tots and Truffle Fries: Both come with a decent amount and are great shareable sides. These came out crispy and the truffle smelled so good. On the menu, they only advertise truffle for the fries but I saw another group get truffle tots and I would've ordered that if I had known. Truffle Honey Chicken Tenders: Comes with 3 pieces and wow! These were some of the crispiest tenders I've had, even though they were covered in the sticky, honey sauce. And even though it was white meat, there was not a single tender that was dry. Highly recommend! Cosmos Burger: Toasted buns, double smashed patties with crispy edges...everything you'd expect from a high-quality smashburger. I thought their cosmos sauce was a little salty and it kind of made a mess but overall, it was a good burger. Although not my favorite smashburger in SD, it's definitely in my top 3. It's also nice that they offer more than just burgers for people craving anything else. read more

See all

Wanted to try a new burger spot but sadly left highly dissatisfied. My bf and I ordered a chicken sandwich & a regular burger meal that came with either tots/fries plus a drink. Every single one of their sodas were flat and the ice part of their soda machine looked so disgusting we opted out of ice completely. There was black stuff all on the inside and it looked moldy. It made it hard to enjoy a drink thinking about it. The Chicken lacked flavor completely and the fries were basic. The burger was VERY greasy overall, the tater tots were probably the best part of the meal which was $40 plus tip we spent $50 on a meal we will not be eating again. Although the ladies working were pretty nice and checked on us throughout the meal, I wouldn't recommend this place. read more

See all

One of the best burgers I have ever had! Service and atmosphere were perfect as well.

In support of "Cosmos", drove from east county to try the Burger, tots, and homemade lemonade. Yeap, it was right on time really good service, food, atmosphere, and clean. I have to give the City of Oceanside...praise, and kudos for making parking very easy. Thank you read more

Cosmos Burger - Sign - Burgers Near Me - Oceanside, California

See all

I got the veg. Burger. Fries w bacon on the side for carnivores. Parents got the blue cheese burger. It was all tremendous! Worth it. read more

Cosmos Burger - Veggie cauliflower burger - Burgers Near Me - Oceanside, California

We had the Hot Chicks sandwich, Cosmos burger and onion rings today at lunch. Everything was delicious and the food came out pretty fast and fresh. Our server Katelynn was friendly and knowledgeable about all the food and drink on the menu. read more

The Spicy Jam and the Cosmo Burgers were stunning! Frings were ample and delicious. Go Here, you won't be disappointed!

I had been dying to try Cosmos Burger! It did not disappoint. Dad and I met for a Friday lunch and left feeling happy, buzzy, and full! We tried the Spicy Jam & the Better Mac - both phenomenal! And those Monkey Fries are like animal style fries on UPPERS! lol! So tasty! Quick service, cute vibes. read more

See all

SOOO bomb! We tried three different burgers and all had so much flavor! We ordered the spicy jam, better Mac, and truffle burger. $15 each burger. It was so good that we came back twice during our trip to Oceanside. Staff were friendly. Delicious food. Highly recommend !!! read more

Good burger. Basic fries. Chicken that the kids had looked pretty good. Food came out in pretty good time. Didn't really have options for vegetarians. read more

10/10 Experience at Cosmos's Burger! My husband, my brother, his girlfriend, and I decided to stop by Cosmos's Burger in Oceanside after a cocktail at a nearby bar. I had spotted it on Yelp and suggested we check it out. From the moment we walked in, we had a great experience. The staff was super helpful and patient with our questions. My brother ordered the Basic Burger, his girlfriend got the Cosmos Burger, my husband chose the OG Hot Dog, and I went with the Spicy Jam Burger. My husband and I shared, and we both agreed--this was hands down the best burger we've ever had. He said it might be the best of his life! The fries were fantastic, especially the Monkey Fries, and we paired everything with a couple of beers. The space is cozy, and we snagged a spot at the bar, which added to the relaxed vibe of the evening. All in all, Cosmos's Burger is definitely worth the visit. Great food, great service, and a perfect place for a casual yet amazing meal. We'll be back for sure! read more

See all

Quick and friendly service. Always great burgers and tots. Cosmos burgers never disappoints. The Spicy Jam is my goto! read more

See all

Pretty good food! Burgers remind me a bit of carls jr, but still some good stuff. Hotdog is great, where in store or to go. Chichek burgers are huge and pretty tasty and crispy read more

See all

I really enjoyed my burger. It was juicy, well-cooked, and clearly made with quality ingredients. The staff was genuinely friendly and welcoming. They also have a great variety of burgers. I was just passing through the city and stopped by for a quick bite, but if I lived here, this would definitely be a regular spot for me. Highly recommend. read more

Delicious burgers, chicken, and hubby loved the onion rings! Found this place on Yelp. Thank you Yelpers. Parking can be a little difficult, but we drove around the block, and there was plenty of free street parking. The burger came out super fast, hot, cheesy, and peppery. Yum! The chicken strips were $13.99 I believe. They were huge! We ordered the spicy strips, and they definitely had a nice Nashville Hot vibe and nice kick. The service was top-notch. David was very helpful when we told him it was our first time here. A few tables available for indoor dining, and the place was clean and well stocked with napkins, silverware, etc. Side note- they actually use real plates and metal forks and knives for dine-in. Nice touch. read more

See all

Food, amazing! Host, amazing! Time to table, fast! Deserts, freshly made tiramisu! Not to mention, the place was clean with fresh flowers on the table and overall uppity. Why are you still reading? Just go try it already! Seriously, stop reading and at least call, try it. read more

Cosmos Burger - The inside of the restaurant. - Burgers Near Me - Oceanside, California

On your way between #orangecounty and #sandiego or need a break from #legoland , STOP GOING TO McDonalds! You have options! Check out @windmillfoodhall right off the 5 fwy and go inside to check out @burger.cosmos food stall inside. Cosmos got the basics for your picky kids but also have elevated and tastier options whose tastebuds are next level. We had a long day and this is what we ordered and enjoyed among 2 moms and 4 kids. So happy Cosmo Burgers was an option for us to feed our hangry picky eater BOYS from 10 to 16 years old! The OG Hot Dog Herb aioli, ketchup, honey mustard, pickles, caramelized onions, beef frank with brioche bun The Cowmos Burger 6 oz. Cosmos patty with brioche bun, cosmos sauce, caramelized onion, Cheddar cheese, pickles The BBQ Burger 6 oz. Cosmos patty with brioche bun, house made BBQ, crunchy onion, apple wood bacon, Cheddar cheese Truffle Honey Chick Sandwich 2 pieces truffle honey tenders with brioche bun, herb aioli, pickles, lettuce, Cheddar cheese The Garlic Parm Chicks Tender 3 pieces tenders smothered in herb aioli and lots of shaved Parmesan Monkey Fries Cheese and Cosmos sauce, caramelized onion, bacon, pickles mix Onion Rings Crispy and thick fried onion rings We can't wait to come back! It was a great break for an afternoon meal. Come check out @burger.cosmos and for all of your foodie recommendations, F OL LOW @oooh_my_bonnie & @something_worth_sharing for the latest food trends. Visual Review https://www.instagram.com/reel/C8KRo73vh4k/?igsh=MzRlODBiNWFlZA== read more

See all

For what I spent, the food was definitely worth it. I don't normally clear my plate - that burger and truffle fries disappeared. Even my 5-year-old nephew, who's extremely picky, ate his entire burger. The service was tremendous, and I'd gladly go back again. I love how it feels like Oceanside with the homely look and local articles. read more

See all

We stopped here last night because I wanted to try their vegetarian cauliflower burger. The woman taking our order was super kind and explained the menu clearly to me and patrons who ordered after me. There is a small seating area next to the cash register where you can watch their two TVs. I asked if it would be possible to put the NFL playoff game on one of the TVs and she made it happen. 10/10 customer service. The food was pretty yummy too. I probably would not get the fried cauliflower burger again because it was very large and I could primarily just taste grease, but the tots, fries and chicken sandwich were good. The people sitting next to us were raving about the burgers and truffles fries they ordered. read more

Cosmos Burger - Hot chicken sandwich with tater tot's and side of truffle fries - Burgers Near Me - Oceanside, California

Ok so me and a friend went to this spot because the reviews were all saying for the most part that Cosmos and their burgers are flavorful. And sadly that wasn't the case when we went. I got a truffle burger and the burger was cooked well, but I couldn't taste any seasoning, the only flavor I got from the burger was from the grilled onions and pickles. The truffle sauce had very little flavor as well but really the burger wasn't bad so if you want a burger with minimal seasoning then this could be the spot for you. Now for the chicken tenders, they weren't cooked the best. The tenders also didn't have seasoning, and were a bit dry too as well. I got the garlic Parmesan tenders and the sauce they put over the chicken was bland. So overall it's not a bad restaurant, but for their prices I would want at least decent seasoning on my food but if you're a person who doesn't care for seasoning this is the spot for you read more

Cosmos Burger - Truffle Burger Garlic Parm tenders - Burgers Near Me - Oceanside, California

Always a joy with best ever burgers and chicken served with pride and with real china plates and cutlery. We visit year after year and the food only gets better each visit. Katlin took great care of us this visit and will take great care of you also! Don't miss this family run gem. read more

A decent burger with horrible fries for 2X the price of In n Out. Service is great, the place was nice and clean. It was really sad to eat a great burger with bland fries that tasted like they were taken from the dumpster behind a McDonalds. If your burgers are fresh, you gotta make some fresh fries too. Bummer. read more

Service was really great. Greeted by a friendly and helpful person. Our food was out pretty quickly, but not too quick, you know? First bite of the BBQ burger and I was impressed with the texture of honestly every layer of it. I'd show you a picture but I ate it too quickly. read more

Cosmos Burger - Results. - Burgers Near Me - Oceanside, California

I love this place. Burgers are amazing. A bit on the salty side, but it crushes that crave for a smash burger. The fries are golden, and so are the staff. read more

Cosmos Burger - Better Mac - Burgers Near Me - Oceanside, California

See all

After visiting a nearby competing burger joint, we hopped on over to Cosmos Burger to see which we liked more. Since this place wasn't as busy, we didn't have the most positive outlook, but were definitely proven wrong after eating! - PARKING - Street parking only, I'd imagine it can be difficult to find a spot since you're on the main road. We managed to slide into a spot right next to the entrance! - SERVICE/ENVIRONMENT - The inside isn't very large at all, with some bar seating, a few 2-4 person tables, and window bar seating. The walls are decorated with quirky art, and I liked the vibrance of the entire interior. The man that served us welcomed us in and was very friendly. After we ordered, the food didn't take longer than 10 minutes to come out. - FOOD - Cosmos Burger: When this came out, I was pretty shocked at the size of it! You could definitely get full off one burger, but luckily my fiance and I were sharing. It was nice attention to detail as they provided us with two plates and a knife! The edges of the patty were crisp, and the inside meat was juicy. There aren't any veggies, but I think if it did have something to cut the fat, this burger might be close to perfect! Tater Tots: Pretty darn crispy! I have had crispier tots, but these were solid. I'm a tater tot lover, so I always pick these over fries if both are on a menu. Hibiscus Lemonade: I felt like this was a bit too bitter rather than tart for my taste. It was still a nice break in-between each greasy bite of burger though. - OVERALL - One of my top burger spots for now! Really interested in trying their other burgers that have veggies inside them.. read more

It was very hard to find a parking lot. And caution, cosmos burger is right in front of a bus stop. The entire front of the restaurant has a red kerb, so fair warning!!! Lol There isn't a lot of seating available. That said, they do try to make as much of seating possible. There are three tables outside along the walkway, and they even make use of the periphery of the restaurants to create seating that looks out to the walkway. We ordered a beer - cosmos lager and a lavender lemonade. The cosmos lager was ok - a little bland. The lavender lemonade was good, a little too sweet for me even though I requested less syrup. Nice light taste of lavender. We ordered a basic burger, the hot chicken sandwich, and regular fries. It took a while to come out, but it was delivered to us piping hot! The basic burger was delicious! Double patty smash burger with caramelised edges, and the bun was nice and soft. My hot chicks sandwich was delicious! The two tenders were crisp, hot, and delicious. Every bite was delicious. And the burger is so huge I couldn't finish it. The fries were wonderful, delicious, and crispy. It's one of the best fries we've had. We will definitely be coming back. Just FYI, if you sit along the periphery of the restaurant and look out into the street, you may end up getting blocked by those tables on the walkway. If you want privacy, pick somewhere else to sit. read more

See all