I think some food cultures of Okinawa were influenced by those of foreign countries. Ta-co is one of those food cultures. Ta-co rice, perhaps being inspired by ta-co, is one of the local specialty foods in Okinawa.
Jerk Chicken(grilled herb flavored chicken) is also a local specialty food in here.
Jambaru taco is the restaurant in Nago city, and which mainly serves those two great local foods.