When I was out in Garden City I used to stop by a little hole in the wall Mexican restaurant for a torta. A torta is like a sandwich with Mexican fillings. You need bolillo bread to make a torta (see the recipe below). For fillings, I like refried beans, lettuce, tomato, cheese, avacado slices and some sort of meat. In the photo below I used fajita meat - steak, onion and green peppers.
Something similar served at Taco Tico is a Taco Burger. I always get the Tico Dinner with either a sancho or a taco burger on the side. Shear bliss.