Great photos - I discovered Tex mex around 1990 while living in NYC and ate it every opportunity I got.
Tex-Mex in New York City? You're breaking my heart! In Texas we have a saying about not eating Mexican food north of the Red River (part of the state's northern border).
My hometown of Houston is a vibrant, diverse, amazing city. I love El Tiempo for fajitas and margartias. This pic shows shrimp, but the beef tenderloin is amazing. I just wanted to show part of the set up that is brought to the table.
Niko Niko's for gyros and dolmathes.
There's a sizable Vietnamese population here and they have taken a Cajun (Southern Louisiana cuisine) staple of boiled crawfish and really spiced it up, even spicier than our Louisianan neighbors. LA Crawfish is supposed to be the best.
Speaking of Cajun food....I love Pappadeaux. The "Pappas" chain of restaurants is headquartered in Houston and includes Tex-mex (Pappasitos), Cajun (Pappadeaux), seafood (Pappa's Seafood), burgers, BBQ, steakhouse, and Greek (don't remember the name, never eaten there).
A casual Italian favorite is Dolce Vita for a wood-fired pizza (my favorite is the pear, arugala, taleggio and truffle oil) and glass of white wine.
My husband loves pho. Loooooves it. His Vietnamese coworkers take him to the family-run, cash-only, "don't you dare ask if we take credit cards," places in southwest Houston. I prefer a good banh mi.
We like to eat. A lot. And drink, too.
Houston's a great city to visit: not so much for tourists (although we do have a fantastic museum district, arts, zoo, and NASA!), but if you find yourself here for business (oil & gas and health care, mostly) you won't run out of good food or friendly faces.