I go to Pro's Ranch Market often for lunch- sometimes several times a week. I've had the street tacos, chile relleno, burritos, and some other tasty treats. I'm a huge fan of the agua fresca stand- my favorites are the strawberry, pineapple, and horchata. And the bakery... oh, the bakery. They have everything sweet you could want including individual servings of flan and tres leches cake.
The store itself has the cheapest produce in town, a giant meat counter, and a great assortment of cheeses. Ranch Market also has super delicious tortilla chips and salsas. This is one of my favorite places to go if I'm on my way to a BBQ or party- there are so many options!