I had the fries and they were a generous portion and delicious!
Five Guys is fast food, they do burgers, fries, poutine, hot dogs, and milkshakes. The burgers can be served without buns and the fries are gf (the only things that go in the fryer). However, it is a fast paced kitchen and my main concern would be CC on the workspaces from the burger buns. I forgot to ask them to change gloves/be careful scooping my fries, and I was fine, but I would definitely ask in the future! They were helpful though and checked the ingredients of the gravy for me (not gf) so I'm sure they'd be accommodating!
— Not very
— No gluten-free information on the menu
— Some
— Excellent