Was at the back end of Terminal C, and decided to take a chance here. I'm Asymptomatic Celiac, so no telling how safe everything actually is. BUT, I verified the meat is 100% beef. You can order Bun-Free. I could not select to not have fries (no dedicated frier), but told them just not to include them. The lady asked if it was an allergy, and she was super kind, and added all sorts of veggies to the bottom of the container. Pictures of the Avocado Bun-Free Burger. It's pretty good!
— Somewhat
— No gluten-free information on the menu
— Not Much/None
— Excellent
You can order without a bun, but other than that there are no gluten free options
— No gluten-free information on the menu