Allergens are not listed on the menu (besides the gluten free bun), but the owner was very thorough going through the menu to ensure the burger was gluten free. They usually have a separate fryer for French fries but it is currently broken. They do toast the buns on the grill, but they cleaned the grill before prepping mine! I was able to get a cheeseburger on a delicious gluten free bun plus a vanilla milkshake (owner showed me the ice cream container so I could verify the ingredients myself).
— Very
— Some
— Excellent