Is there any type of food you are looking for in particular? Also, what area are you staying offsite?
I will suggest something off the beaten path - North Orlando has something of a Vietnamtown, and my family likes going to Lac Viet. My MiL (who is from Vietnam but is ethnically Chinese) thinks it's relatively authentic, for whatever that's worth).
A few other thoughts:
Closer to the parks, Joe's Crab Shack is garbage, and you will find better crab houses via google search. Again, they might be in North Orlando.
TGI Fridays, Chili's, Ruby Tuesday and Applebees are your standard family bar/grill - think Boston Pizza or Kelseys. If that is what you are looking for, you will not be disappointed, but you will also be unimpressed.