Hola! Mi Tierra restaurant, located downtown, is well know for the Mexican Food. It's a bit pricey for locals, but most business travelers enjoy it. Definitely check out Market Square, and walk down the riverwalk. You may like riding up the Hemisphere tower, and you can get a nice bird's eye view. The restaurant up on the tower is fabulous, but a bit pricey. Stay away from all Mexican restaurants on the riverwalk....food is gross!
Will you have a car? What do you like to do?
Take the boat ride down the river. It gives you some great views of the city you don't get otherwise and you hear the history of the city too.