Found a nice article here that gives a bit of background info as to the creation of gluten free menus at Outback Steakhouse and Uno's Chicago Grill. The article comes from a news station in Binghamton, NY.
Gluten Free Living: Chain Support
Outback Steakhouse's Gluten Free Menu (Map of Los Angeles Locations)
Uno's Chicago Grill Gluten Free Menu (Map of California Locations)