They DO NOT have gluten free burgers!! But the staff was very friendly and the fries are delicious.
They say they are NOT Gf. Sauce and fryer they cannot guarantee. Not a knowledgeable staff as well
English-speaking staff was very helpful with menu options for Gluten, milk and soy issues. They even brought us a bag of tortilla chips so we could check ingredients ourselves. We did not ask about a dedicated fryer but we had no issues from the (tasty!) fries. We did the build your own burger menu. Burgers were a bit pink so be sure to specify if you want yours medium or well. They also have chicken breast available.