Had the chicken/veggies/rice bowl with the GF teriyaki sauce. Nice to have a GF option other than pasta or pizza, but I really disliked this meal. The sauce was sickly sweet had the consistency of an artificial dessert syrup and the chicken was rubbery with pieces of chewy fat. It was equivalent to (and arguably tasted worse) than the microwaveable teriyaki bowls I used to buy from the Costco freezer section. The chicken pieces even appeared to have fake grill marks on them (but I could be wrong). Were the sauce more natural and less of a dessert sauce and the chicken actually had the taste and texture of real, freshly grilled chicken (therefore, please use natural, unprocessed chicken and grill it same day on-site), I would eat there again. As the meal is now, I won't. The owners of this restaurant should go try the chicken at places such as Chipotle and move towards that level of natural, healthy, and way better tasting food.
The staff was very knowledgeable about what was gluten-free and what they could make gluten-free just by leaving off the sauce that they usually grill it in. I had a rice bowl with Rumbi rice, tofu (cooked in a touch of oil), veggies, and gluten-free teriyaki sauce. Awesome!
I like that they have a separate gf menu. The staff was friendly, helpful and knowledgeable. If you order gluten free at Rumbi, plan on waiting a while. It took them 40 min. to prepare my rice bowl. Also, ask for extra sauce. They give you a small cup of sauce that barely flavors it tastes fairly blah, and you'll need salt! I'll try it again but not for take out.
If you're in the mood for a rice bowl, then this is a place to go. They have gluten-free teriyaki sauce, and the staff seems knowledgeable with gluten-free food. It is recommended for those with celiac disease to have the vegetables steamed. The only reason this place did not receive five stars is the extremely limited selection of food for those with Celiac disease. They do not have a dedicated menu but you will not get any funny looks from the cashier if you ask about the gluten-free options.