Ate there yesterday with my sister who has Celiac. We expressly stated she had Celiac and needed to eat gluten free. She ordered the gluten free version of the Blackstone Supreme flatbread (item had a "GF" symbol next to it on the menu to indicate it had a gluten free version). She got very sick in the middle of the night so the food definitely had some form of gluten in it.
— Not at all
— Gluten-free items are marked on the main menu
— Some
— Poor