In my experience, the staff is not very knowledgeable or aware of the severity of food allergies. However, they do have some gluten free options. They seem to be able to make any sandwich gluten free and have gluten free "shady sticks" which I think are cheese sticks?
If you aren't very sensitive, I would say it's worth a try, but make sure you ask if you are unsure about anything, as they won't warn you if you accidentally order something you weren't aware contained wheat.
— Not very
— Gluten-free items are marked on the main menu