I ordered my burger on a GF bun although lettuce "stack" was another option. The server asked if it was an allergy or a preference. Upon telling them I was celiac, they said "Okay I'll let the kitchen know it's an allergy". I told them it was not an allergy and they looked rather bewildered. My burger came on a GF bun, and piled with "crispy" onions which when asked, the same server said they were not GF. On the bright side, the selection is good and the burgers are very tasty as attested to by my dining mates.