Coco's Ichiban is my favorite fast food restaurant in Okinawa. They have several locations through out Asia but only a one or two in the U.S.A and those are in Hawaii. The one I frequented is across the main drag from Camp Foster. They have several dishes served up in a spicy curry sauce which can be made spicier on request. Most popular amongst my friends was the chicken cutlet curry. My favorite was the seafood curry with quail eggs level 10. The only thing I didn't like there was the Natto curry. Fermented soybeans must be an acquired taste