Just as there are food stalls in the mercados in Mexico, there are taco trucks in the parking lot behind the Farmer's Market on Airline Drive. The one in the middle is crowded with well-dressed Mexican-Americans at 1:30 p.m. "Taqueria Tacambaro," it reads in painted letters on the roof. There are stand-up counters mounted on three sides of the back of the truck. They all face a short-order cook named Maria Rojas, who is stuffing gorditas, frying tortillas and chopping meat all at the same time behind sliding glass windows. The taco al pastor is made with spicy pork that is crisped in a skillet and put into two folded-over corn tortillas, which are toasted on the griddle. Roasted jalape?os are a specialty of the "house." Maria Rojas is from Michoacan, and she cooks here just like she would in a stall in the produce market in her hometown.