Ordered a burger (without the brioche) & said I was GF. The fries (which were not GF) were put on the side even though I asked for mashed potatoes. Also, it was topped with an onion ring. I sent it back. The same burger appeared two minutes later with an errant fry still on the plate.
Hence, this place is GF by ingredient. I would not recommend eating here if you have Celiac.