No dedicated kitchen space but they use clean bowls to mix (regardless) and separate utensils for all ingredients. Was told all sauces were gluten free (even ones with soy sauce bc they use a GF brand) but then was warned not to add masago to my order bc it had soy sauce... Huh? Didn't you just tell me it was gluten free? Answers from the employees vary but the spicy mayo is absolutely gluten free. I get the 1/2x1/2 base, with salmon, cucumber, radish, edamame, spicy mayo, sesame seeds& avocado.