La Plaza might just have the best authentic Mexican tacos. I didn't even realize that this supermarket had a great lunch spot back in the corner of the store until someone told me how good their tacos were, so I had to check it out for myself. My fiance and I had lunch here on a Saturday afternoon right around 12:00pm. It wasn't crowded when we got in line, but as soon as we sat down the line of people waiting to order was getting long. I had three tacos one each of barbacoa, carnitas and chorizo. He had a steak taco and a carnitas burrito. The food was delicious. It was made right in front of us and done quickly. The best part was the salsa and taco toppings bar that included 4 or 5 different spicy salsas and sauces, onions, limes, radishes and cilantro.
Tacos were $2.50, burritos $7, and they also had tortas and quesadillas which were also cheap.
They only have a couple of tables so I would suggest getting there early for lunch. I forgot to ask how late they stay open, but I have a feeling they are only serving for lunch.