I went in unsure of my options but they have a GF bun you can use for a lot of their sandwiches. I ended up having the waitress talk to the kitchen about some of the ingredients in the nachos (sauce for nachos and toppings). I got the nachos (minus beer cheese) and added chicken. They were really good and no reactions.
— Somewhat
— No gluten-free information on the menu
— Some
— Good