I've been here twice. Both times the manager has been very knowledgeable about gluten allergies and very helpful (for example, he told me I shouldn't eat the nachos because they're fried in oil that is used for something containing gluten). The corn tacos are made in house and are gluten free. A few of the toppings are not gluten free, so there is the possibility of cross contamination, but the managers are happy to get the kitchen help to take extra precautions. The tacos themselves are delicious and not very expensive. Nice outdoor seating too. One thing they could do to be even better would be to offer cider or a GF beer in addition to the two beers they serve.
The corn tortillas are made in house or sweet yellow corn and taste amazing. When I told them I have celiac they were not only knowledgable about what I could eat, they prepared it in a separate pan to insure my food would not be contaminated.. Cheap, quick and delicious -- a celiac'a dream!