Nice small Mexican restaurant next to a Mexican grocery store. They have 9 tables for seating. It…read morehas the normal decor you'll find in about any place like this. We were there just after opening so it wasn't busy at all. The food was pretty good, with the usual refried beans and rice as sides for the lunch combos. I got a two enchilada plate. Both enchiladas were great. The plate was sizzling hot, so be forewarned. It was a lot of food for $9.95. The salsa that comes with the chips had a good flavor and was spicer than I expected, perfect heat. The food came out fast and our server, Tirine, did an excellent job. I only had water to drink. This place will definitely be on our our hit list when we come back to Ontario.

Great food and service. Very accommodating. Their Tamales and Enchiladas are the best.read more

Excellent service, incredible prices and super yummy food. Great tables outside to sit and eat…read more(which worked well to take a break from our long road trip).

This is a permanent food truck adjacent to a patio, so the ambiance isn't there. However, as food…read moretrucks go, they make excellent, delicious, affordable food that is not dripping in grease like Los Betos. They have a lot of Mexican favorites you won't find at a more Americanized food truck (e.g., some of us grew up with beef tongue and tripe; it's good someone is cooking it). The service is prompt and quick.

This place reminds me of Mexico! The salsa is smoky and delicious and the food is plentiful and…read moreyummy! We had enchiladas suizas and an appetizer and struggled to finish our food. Everything fresh and the staff is friendly. The restaurant is clean and colorful. This is a family owned business and we will come here every time we go to Ontario!

Always love Los Potrillos family restaurant. The ownership is solid, service is outstanding, food…read moreis incredible and prices are very competitive. I eat here regularly and consider it the BEST Mexican restaurant within 20 miles. I enjoy the music and atmosphere as it adds to the experience. The cooks really care about their work and it shows in what comes to the table. Absolutely the BEST salsa in the local area. Give Los Potrillos a try, you won't be disappointed!!

The food is always fresh and the service is great.......................................read more

The food was good. We Ordered flautas and tacos…read more............................... The food was good. We Ordered flautas and tacos.

Food is superb. Nice staff, too. I recommend. I had the chicken bowl and it was a large serving and…read moreyummy.

Decent sized place. Lots of seating. TVs on the walls for sports…read more Order at the counter, they make the food in front of you. Portions are larger than I expected. The burrito is $14 and large. Flavors were okay- salsa was nice, rice was really good. Staff were professional.

At first by the parking lot, it looked like there was a lot of people, but we were able to pull up…read morefor front row it was such a delight and a great experience for my friend I was bringing and it's never been here before we were very welcomed by the older gentleman I believe to be the owner's husband so probably the owner as well. Let me start with the margaritas. We got strawberry margarita it was super delicious very divine. And let's not forget about this chips and salsa. They also provide beans with it and you can tell the salsa is made homemade that beans are fresh a little bit of Mexican cheese on top. We finished the basket of chips in two seconds. my friend ordered the tacos of all different flavors and kinds. I ordered the Carne Asada plate with flour tortillas. The only thing is you need to ask for extra napkins other than that you're gonna have a great experience. It's a very clean environment. I love the owners and I love spending my money here. Must try when you're in old town.

Very cute tucked away spot. Beautiful colorful atmosphere, very welcoming and inviting. The chips,…read moresalsa, and beans were delicious. And don't get me started on the margaritas! Omg and then the main meal!!? I already want to come back again right now. So delicious. Honestly best Mexican Food I've ever had . Wow I am so satisfied!!

We came in with our step-daughter for a nice dinner without the grandkids…read more Good choice! The atmosphere was warm and well themed, the staff was welcoming and accommodating, and the food was flavorful. Chimichanga's are my weakness, and they had a very good version, mine made with chicken. Others very much enjoyed their meals as well, with two of our group taking leftovers to enjoy another meal. We had one problem with apparently one of our dishes made wrong. The manager (owner?) asked to clarify what we ordered, and immediately went back to take care of it! I could have taken what they made, but he wanted to make things right. Excellent customer service! Come in for some good Mexican food with authentic atmosphere and a staff who really cares about their customers!

I swear these places are going down hill. Yesterday my partner and I ate at fiesta Guadalajara at…read morethe fair and they forgot to give him rice & beans with his order when my partner went back to ask for his rice & beans to one employee the other employee a man named Modesto ( so called owner for over 20 years) said to the other employee " que quería ese guey" (" what did that idiot want")l who talks like that about a customer?? I called the "other owner " and filed a complaint with the fairs board.

Salsa was above average and had to ask for chips and salsa. I got the breakfast burrito because…read morebreakfast is served anytime of day. Very marginal.... Very little flavor. My son liked the fish tacos. Our waitress was very young and did not know the answers to several of our questions about the menu. Overall cleanliness in the restaurant side was not very good. In general, this place is average.

I appreciate that they have both an English version and Spanish version of their menu. It makes it…read moremuch easier to order for people who only speak Spanish or only English. It is very spacious, so it looks like it would be good for big parties and celebrations. Our burritos were quite tasty. I had them to go because we had to get back on the road.