This burger chain has the options for gluten-free buns or lettuce buns. I talked to the staff, and their special burger sauce has wheat, but their teriyaki sauce is wheat-free. No dedicated fryer, but their salad dressing is also wheat-free. Staff were pretty knowledgeable and able to suggest substitutions.
I had the avocado burger (no sauce) and salad. The burger was nice and juicy, if a little bland. The salad was decent.
— Somewhat
— Gluten-free items are marked on the main menu
— Some
— Good