The fajitas at the original Tex-Mex outpost on Navigation earn their cook the title of Mexican fare experts. Alongside the fajitas, staples like mole enchiladas, Oaxacan-style pork tamales, and jalapeño-stuffed Shrimp Diablo (not to mention the head-sized frozen margaritas) take some serious culinary chops, which means these dishes go far above and beyond Houston's other Tex-Mex eateries.