I let them know that I had celiac disease and asked if the burgers and gluten free buns were cooked in the same area as the wheat buns. They had the chef clean an area of the grill to make my burger. They labeled my order as an allergy order and the burger came out with a gluten free sticker on the wrapper. They were familiar with celiac and let me know the fries were gluten free too.
The staff were very knowledgeable and even suggested gluten free items I may like. It is a fun and family friendly environment and the burgers are great.