All of the sauces are gluten free! Everything on the menu except the Mac n cheese and the chow mein noodle salad are gluten free.
UPDATE!!! Beware that they are now making an orange chicken and this place is no longer safe. I have been told that the orange sauce is not gluten-free and that they are preparing the orange chicken on the same surfaces that they prepare all the other food so now everything is glutenized.
Although most everything is considered gluten free, they are not completely safe due to cross contamination. I found their allergen list and everything except the luau pig, sauces, and pineapple are marked safe from cross contamination. Even the rice is cross-contaminated. I haven’t had a reaction (as far as I know), but it sucks there could still be the slight risk of internal effects.