Tacqueria Arandas is probably what you're thinking. Really good stuff. And if anybody wants a local chain burrito joint, Freebirds blows Chipotle out of the water.
And I can assure you, regardless of what anybody from Pittsburgh thinks, Houstonians think even higher of their Pappas restaurants. Those places are everywhere and people go crazy for each and every one of them.
Pappadeaux is good, though. Pappasito's, Pappas BBQ, Pappas Burgers, Pappas Steak, and Yia Yia Mary's are all restaurants that aren't great compared to their counterparts but will do in a pinch, but Pappadeaux actually offers something that's different and worthwhile.