If you have celiac there are little to no options. We attempted to eat gluten free chicken nuggets but failed - we nicknamed them "chicken gum." Very disappointing- sneak in your own food.
I don't know if it is 100% celiac friendly, but I think that some of the foods were packaged elsewhere. The menu says that everything is made to order and I saw a lot of refrigerators from the window. I am enjoying my gluten free chicken nuggets. They also gave me lettuce without the croutons, which I appreciated. They have multiple signs advertising Udi's food service, http://foodservice.boulderbrands.com. They also served prepackaged kosher meals.