The typical array of Mexican entrees can be found here, with lots of enchiladas, quesedillas, burritos, and other such things. Servings are farily large and the prices are reasonable. The food isn't particularly spicy and depending on the dish may be somewhat bland. It is, however, quite acceptable for a decent lunch.
Service is generally really good, with staff being very accomodating for large groups.
As is usually the case with Mexican places, plenty of vegetarian food is available. They also have a full bar and several high- quality Mexican beers available. My recommendations are Dos Equis on draft, Negra Modelo in a bottle, and the Cahlua Milkshake.