thumb|right|upright=0.75|Fajitas, wheat tortillas as taco wrapsthumb|Bowl containing Chili con carne served in a Tex-Mex style, with pork, beef, cheddar and monterey jack on top. From the South Texas region between San Antonio, the Rio Grande Valley and El Paso, this cuisine has had little variation, and from earliest times has always been influenced by the cooking in the neighboring northern states of Mexico.
thumb|right|upright=075|Fajitas wheat tortillas as taco wrapsthumb|Bowl containing Chili con carne served in a Tex-Mex style with pork beef cheddar and monterey jack on top From the South Texas region between San Antonio the Rio Grande Valley and El Paso this cuisine has had little variation and from earliest times has always been influenced by the cooking in the neighboring northern states of Mexico