New Englander here, going to be in San Antonio for the first time next week, around the convention center, but am aware that I won't find much acceptable chow around that area ("the Riverwalk"?).
I scoured the board here and came up with the following - comments on whether these places are still on top of things?
Henry's Puffy Tacos
The Little House
Taqueria de Mexico
If someone could narrow that list a bit (or add some) I'd appreciate it!