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    O2 Valley

    4.4 (608 reviews)
    Closed 11:00 am - 9:00 pm

    Order O2 Valley Takeout or Delivery

    O2 Valley Photos

    Business Info

    O2 VALLEY ATMOSPHERE

    What's the vibe?
    Moderate noise
    Dogs allowed

    Recommended Reviews - O2 Valley

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    Reviews With Photos

    Kaylee T.

    I forever love getting their bentos. I like how the sides always change and there's always a different side to try each time I get it. The portions for the sides are always filled to the brim. This was my first time getting the eel bento from here so I was a little disappointed on how there's only two pieces of eel for $19.68.

    Thai basil chicken bento
    Megan L.

    Great quick-eat spot in Cupertino and right next to Main Street. The bento boxes are pretty large portions so definitely worth the price. Authentic Taiwanese food and all the sides in the bento go well with the main dish. Easy ordering with the QR code and very quick service. Restaurant has a laid back vibe, great for casual hangouts

    Thanh T.

    Ordered through qr code and everything came out super fast! All the fried foods were done perfectly. Extra crispy on the outside but still moist on the inside. They have a good variety of bento boxes/ combos and a la carte. Price was pretty good for the portions! We dined in and luckily snagged the last table but take out would be a great option too!

    Interior
    Hannah C.

    This place's food reminds me of the Taiwanese bento boxes I grew up eating! Cannot recommend O2 Valley enough - delicious food, huge portions, and a variety of options. I visited on a Saturday afternoon, and it was quite busy. After 1pm, however, the crowd started to clear. The interior is minimally decorated, and there's a fair amount of seating. The bento boxes were the star of the show! I can't get over how much food was in a single bento box - one bento could easily last you two meals. The popcorn chicken was fried to perfection and covered in fragrant spices. The accompanying sides were also delicious! I really enjoyed the grilled chicken. It honestly seemed more fried than grilled, but it was tasty nonetheless. The grilled chicken portion was somehow even bigger than that of the popcorn chicken. There were two huge pieces of grilled chicken, all covered in a sweet and tangy marinade. The golden kimchi paired well with the bentos and cut through the richness of the meat. I've heard great things about the drinks here as well but didn't get a chance to try. Just another reason to visit again! If you're looking for comfort Taiwanese food, O2 Valley is the perfect place for you!

    Chicken Cutlet Bento
    Felicia C.

    O2 is probably my favorite Taiwanese fried chicken cutlet that I have ever had, maybe O2 even beats Taiwan! I always get the Chicken Cutlet here and really recommend getting the À la carte version since they give SO much chicken!!! Chicken Cutlet - The chicken is always so crispy and flavorful here. The white pepper flavor with salt is an iconic Taiwanese fried chicken taste, and O2 does it so well. The bento is pretty good too and huge! It comes with vegetables, rice with minced pork, and some noodles. You WILL have leftovers! I definitely recommend coming to O2 if you are visiting the Bay Area, the chicken cutlet is a must!

    Menu
    Brian T.

    Favorite Taiwanese bento box! Amazing fried chicken here. Small restaurant in tight plaza with parking all around. They have tea here as well but stuck to my usually spicy grilled chicken bento box. The spicy grilled chicken bento has a small kick to it with sauce marinated around it. It has a light crispy batter around it so not sure why it's called grilled. Comes with rice, boiled egg, and 2 sides. Have had different sides on different days. Popcorn chicken with garlic was great and has loads of garlic. Plenty of fresh garlic to make your mouth smell right after. Nice staff. Order takes about 10-15 minutes and perfect for to go. Quick and easy lunch with huge portion.

    R5 - boneless fried pork chop bento
    Kaho L.

    I wish I had tried this place sooner! This is some very legit and addictive Taiwanese comfort food. We tried a variety of dishes and they were all great. There's also a very generous amount of food, I would say that each bento can be 2 meals or for one very hungry person. In addition to the main meats, each bento comes with a lot of rice, sides, and veggies. All the fried foods were fried to perfection. Quick and easy online ordering system for takeout or delivery. Would definitely recommend this spot to anyone craving Taiwanese snack food classics.

    Popcorn chicken with Basil
    Yushi N.

    When I bit into my first O2 Valley popcorn chicken, I was amazed by how juicy the meat was given how crispy the exterior was. The chicken katsu in the bento was equally succulent. Paired with garlicky broccoli, braised egg, and a generous portion of rice, the food was amazing given the price point. One bento could likely feed two people - that's called a great deal. The interior of the store had relaxing plant motifs, including a mossy panel on the wall. Why the store is called O2 Valley is not clear to me but the refreshing, nature-y aesthetic was very relaxing to dine in. Most importantly, the service was super nice :') Idk the cashier just genuinely wanted to help, offering to show pictures of the food, bringing extra bowls to the table, etc. He seemed like a good boy pat pat.

    Minced pork bento
    Linda M.

    I've lived nearby for a long time and never stopped in. They're located in a small plaza with not too much parking. I typically just walk to this plaza. It's a pretty cozy shop. There's a good amount of seating inside. You seat yourself and order by QR code. Water, utensils, and condiments are also self serve. I'm sure you could probably order at the counter as well but I've never done it. We got a minced pork bento and a stir fry basil chicken bento. The chicken bento was pretty spicy, I liked it. The chicken was cooked very nicely and you get two sides and an egg as well as rice with minced pork. The minced pork bento comes rice, egg, and two sides. The staff brought our food to our tables for us. They come in convenient bento boxes and you can ask for lids and bags at the front should you need them. The portions are pretty generous. I ate maybe a third of mine. My partner finished his bento. Depends on your appetite. This is a great place when you just want some comfort food at a no frills mom and pop shop. They're not a big chain and are locally owned!

    Grilled Chicken Cutlet Bento
    Lawrence C.

    While I was in San Jose, a friend of mine suggested a Taiwanese bento place that I could check out since he was a big fan of it. I decided to order it on Uber Eats since I wanted to try it for lunch that day, and it was delivered fairly quickly with no hassle. I decided to try out the grilled chicken cutlet bento, since people online said it was better than the regular fried chicken cutlet since it's first fried and then grilled with additional sauces added. The portions of it are pretty sizable, and I was a big fan of the sauce along with the crispiness of the chicken. The meat was quite tender as well, while the sides were good as well. I decided to get their milk tea too, which also was pretty solid. Overall, I would definitely order from here again and I can see why my friend recommended it!

    #R6 Braised Pork Chop Bento (Boneless) 滷排骨便當
    Amanda M.

    I came here for lunch and got their Braised Pork Chop Bento 滷排骨便當. I was surprised with how many pieces of pork chop they gave, 5 pieces! The portion size for the bento is good, enough for 2 meals for me. The rice had a braised pork, then came with a seasoned soy sauce egg, and two sides. The sides vary - this time I got cabbage and carrots stir fried, and some type of meatball (pork ball) and celery mix. Overall, food came out within 5 mins of ordering. Everything was very quick and delicious. Parking can be a bit difficult but they have some parking at the back of the building.

    My bill
    Khai T.

    I came here twice, and here is my experience: 1. Ambience (4/5): The restaurant isn't too big but has plenty of seating. It's very clean and well-organized. 2. Service (4/5): I mostly served myself because there was only one worker handling both the cashier and server duties in the front. The lady in the kitchen brought the food to my table when it was ready. The guy at the counter was very helpful and nice when I asked him some questions about my food. 3. Food (4/5): - Grilled Cutlet Chicken with Rice (4/5): I thought it would be grilled chicken, but it was actually a big piece of fried chicken with a crispy coating. It was still delicious with the rice. The chicken had a crispy crust and was topped with sauce. I was very surprised by the huge portion, it could easily feed two people! I think the owner focuses on food quality and portion size, which might be why there are only a few workers. The bento box also came with a side of stir-fried vegetables and some braised pork. - Curry Rice with Fried Chicken (4/5): It came with the same fried chicken. The curry sauce was flavorful and pretty good. I'm not usually a fan of curry, but this one was fine for me. Overall: Service was quick and mostly self-served. The food was affordable with huge portions. Everything tasted flavorful and delicious. I'll definitely come back soon!!!

    #A4 Garlic Popcorn Chicken
    Donna D.

    Tried O2 Valley and really enjoyed it! I had their garlic popcorn chicken and loved how much garlic they put on it. So crispy and flavorful and it really hit the spot. I also liked that you can serve yourself dipping sauces which makes it fun to mix and match. It is a nice place to chill and hang out. For drinks I got the mango yogurt which was creamy and sweet and the jasmine milk tea was tea forward which I love. Definitely a solid spot for good bites and drinks.

    #R4 Popcorn Chicken Bento 鹹酥雞便當

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    2 years ago

    Love their salt and pepper chicken. This is our goto spot for Taiwanese bentos. I usually get their lemon Aiyu plus boba drink. So good.

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    10 months ago

    Food is consistent and portion is large. Good option for those who like Taiwanese foods

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    1 year ago

    Bento boxes were great and portions generous... simply put, you get your value and price worth! Definitely recommend.

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    Page 4 of 16

    O2 Valley Reviews in Other Languages

    Ask the Community - O2 Valley

    Does the food have MSG in it?

    Realistically there any dish that contains some amount of soy sauce or otherwise contains some form of MSG. As MSG is the naturally occurring salt in soy sauce. I say this because it is likely that the marinade of many items contains some amount of… Read more

    Accept credit cards?

    Yes!

    I received QR code for points, how do I use it ? What is the point reward for? Will it get expire?

    You need to create an account with them first. Then, you can scan the QR code to accumulate those points. Each dollar earns you one point, and you can redeem menu items with your points.

    Do you guys open on thanksgiving day? If so, what is the hours?

    We are open on all holidays including thanksgiving day. Our business hours are the same, which is from 11 am to 9 pm.

    View All 8 Questions

    Shu Shia

    Shu Shia

    4.3
    (273 reviews)
    1.6 mi

    If you like healthier fruit, avocado, coconut smoothies, this is your place! If you like stronger…read moremilk tea and boba, it is perhaps not. I love that you bc an do 0% sugar for almost every single drink, and do a $0.50 monk fruit option. But take note, monk fruit is expensive and barely sweet so it won't add much sweetness at all. Order your drink online ahead too; because there's almost always a 15-40 minute wait, especially on a warm day.

    There's almost always an hour+ wait here, so I definitely recommend ordering online ahead of time…read more I live nearby, so I just placed my order in-store and came back about an hour later to pick it up. I ordered the Yumberry Yogurt Drink, Peach Gum Drink, and Grape Yogurt Drink. I got all of them at 30% sweetness, and they were still pretty sweet, so I'd recommend ordering them with even less sugar if you prefer drinks that aren't overly sweet. Even though they're always busy with orders, it wasn't crowded inside. I was able to find a seat since most people just grab their drinks and leave. The drinks are very fruit-forward and taste incredibly fresh and high quality. If you enjoy fruity drinks, this place is definitely worth trying. My favorite was the Yumberry Yogurt Drink because it was so unique--I've never had anything quite like it before. It reminded me a bit of a mulberry drink with a creamy yogurt twist, and I'd definitely order it again.

    Photos
    Cheezo Pink Peach
    Cheezo Pink Peach
    Avocado Mango
    Avocado Mango
    Signature Avocado Smoothie with Chia Seed

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    Signature Avocado Smoothie with Chia Seed
    Ceré Tea

    Ceré Tea

    4.5
    (530 reviews)
    2.2 mi
    $$

    I had heard a lot about Cere Tea on social media and wanted to try so we headed over on a Saturday…read moreat around 10:30 am to get some drinks. They had some classic to flavors of matcha on their menu such as mango and strawberry that sounded good. Strawberry Matcha Einspanner - I opted for the einspanner because I wanted something on the sweeter side. The cream on the top was so fluffy and textured, it was enjoyable to scoop up with the small spoon. Mixed all together, the matcha flavor came through really well and was enhanced by the sweetness of the strawberry. I have gone back to get the same strawberry matcha einspanner a couple times and it hits every time. I would highly recommend going for their drinks especially if you need a little sweet treat or pick me up.

    Love coming to Ceré Tea! They have a great variety of matcha, hojicha, and fruity drinks. Truly…read moresomething for everyone. It's a small shop, so it's not really a place to hang out and stay awhile. DOUBLE MATCHA (5/5) - Creamy and strong! When I think of mind this is exactly what I expect. Reminds me of matcha I had in Japan. Yummy! STRAWBERRY CLOUD MATCHA (3/5) - Love the presentation, but the strawberry is overpowering and takes away from the taste of matcha. Kinda feels like a caffeinated strawberry milk. MATCHA STRAWBERRY (3/5) - Didn't wow me. Taste wise, very stereotypical strawberry matcha. I felt that the matcha was decent quality and not powdery. I want to come back soon to try their other drinks because everything on the menu intrigued me.

    Photos
    Matcha Einspanner
    Matcha Einspanner
    Kokuto Hojicha Latte
    Kokuto Hojicha Latte
    Matcha einspanner

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    Matcha einspanner
    Rose Tea Lounge - Cupertino

    Rose Tea Lounge - Cupertino

    4.1
    (122 reviews)
    1.0 mi
    $$

    Rose tea lounge is one of my favorite stops! However the prices are a bit costly so it's a…read moredefinitely a treat to ourselves! My husband and I love the ambiance inside, it smells so good and it's always clean and cutely decorated. They have one kiosk, and there's not always someone available to take your orders because they're focused on making drinks. Which makes sense if they're busy! I truly love their fruit drinks! Strawberry Heaven is my to -go!! Adding in lychee bits (not the bites/ stars) was the best decision I ever made lol my husband loves their mango tango As for coffee Creme Brulee Boba Latte is our favorite ! This only comes in a smaller size but if you get Black Sugar Boba Latte and add xreme brûlée it's technically a larger version but $$ it'll cost you, I think it comes out to $9-10 (like I said treat) We do like the curry pizza right next to it as well! Give it it a try next time :)

    - beautiful interior with lots of seating, a great place to chat with friends…read more - you order at a kiosk system - the gyokuro green milk tea is so delicious! It's light, refreshing, and almost has a toasty rice flavor. The lid is also so interesting and fun! - fruit tea was a little too syrupy for me but the orange flavor is more prominent and still refreshing

    Photos
    Tiramisu milk tea, dirty boba matcha latte
    Tiramisu milk tea, dirty boba matcha latte
    Strawberry cloud and tie guan milk tea
    Strawberry cloud and tie guan milk tea
    Strawberry Heaven: Jasmine w/ strawberries ($6.25), Da Hong Pa Oolong MT ($6), Seasonal Peach Cloud: Peach Smoothie w/ cheese foam ($7.99)

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    Strawberry Heaven: Jasmine w/ strawberries ($6.25), Da Hong Pa Oolong MT ($6), Seasonal Peach Cloud: Peach Smoothie w/ cheese foam ($7.99)

    O2 Valley - bubbletea - Updated July 2026

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