William: I hope you come back to this and read some suggestions. I rarely tear myself away from FT Miles as that is time consuming enough. Maybe this will help others who are searching for some great SAT restaurants.
Try:
Mexican not downtown: La Posada del Rey (Quarry), El Jarro, Los Barrios
Mexican downtown: The Mexican Manhattan (a place locals love)or Rio Rio on the Riverwalk. Rio Rio's portions are huge.
Paesano's downtown or Quarry: Be sure to eat the shrimp Paesano.
I have heard that Azuca downtown is wonderful.
And William, I'll meet you at the Countyline any time!