Owner Robert Valencia has replicated the ethos of the big city Mexican taco stand. Red and green chili stew is big here. The best tacos include pastor, carne asada and lengua (Spanish for tongue). It is also a good idea to come whenever gorditas, stuffed corn shells, are on for specials. 3675 S. Decatur Blvd. 252-7857. Open Mon.-Fri., 10 a.m.-8 p.m., Sat.6 a.m.-8 p.m., Sun. 8 a.m.-7 p.m.