I honestly never thought I would go to a chain/theme restaurant on my trip to Hawaii (or anywhere really!) because it's just not my preference, BUT finding gluten free food here has been challenging!
Based on reviews this felt like the safest place for a burger.
The burger was delicious and the bun was tasty. They didn't ask me if I wanted it grilled on a separate surface, but I had no reaction and it's been 5 days. I feel this is a safe option.
— Somewhat
— Gluten-free items are marked on the main menu
— Some
— Excellent