We stopped here for a gluten-free burger and a portion of fries. Unfortunately, we left with mixed feelings. While the food was delicious, the cramped working environment and somewhat dingy surroundings raised doubts about the food's contamination-free preparation. Our inquiry as to whether the mayo was gluten-free was met with the burger chef's response, "Well, what could possibly be in that?" The menu on the website isn't very informative. While there's a gluten-free button here and there, further information on allergens is lacking. Therefore, we don't recommend Burger Chalet for people with celiac disease.