You have to ask for the gluten free menu. They offer a large number of gluten free sausage and sauces. Their fries don't share a frier with anything else so they are safe. The sausage is cooked in a shared over but if you tell them you are allergic they will wrap the dogs in foil to prevent contamination. Great meal, great atmosphere, very helpful.
I've been coming here for almost 5 years and they never disappoint! I'm glad they have some sausages GF but of course, no buns with that. The exotic sausages are amazing! Be open to trying rattlesnake, rabbit, duck, and pheasant! Everyone is very friendly and they do have beers (I don't think they're GF though).
Ask for gluten free menu at register
This place is a hipster paradise. Staff has a gluten free menu that only has which sausages are gluten free, but not anything else. Risk of cross contamination is high for fries since some of the sauses might contain gluten... but fries themselves are gluten free. Food is amazing.