Not to suggest any specific place, there are a few places around here that I really enjoy. I thought I might drop a few extra suggestions into the pot.
My favorite place to eat is Johnny Carino's. Italian with a bit of southwest flare. Not sure if this would be a good place for a large gathering. It's a little more upscale than places like Denny's, but the food is excellent, IMHO. Think of an Italian Red Lobster, but with really good food. :wink:
Other places I enjoy that might be more suited to larger gatherings are Rudy's BBQ, a place in downtown Georgetown called Monument Cafe, and the Spaghetti Warehouse in downtown Austin.
I'm sure there are tons of other places, but these are the main ones I frequent. I really don't eat out all that much, except when family comes to visit, that kinda thing.
I've never been to Chuy's cause I'm not a big fan of spicy food. I usually avoid Tex-Mex, but you never know until you try.