They have a gf roll that was amazing! And also very clear that if you are really sensitive then you should not eat there. I am not, so it was a great option for a quick sandwich. Would definitely recommend.
They have a small sandwich bun that is gluten free. They will ask if you are allergic or just sensitive and get fresh utensils gloves etc if necessary. The bun itself is very good. They also sometimes have GF macaroons.