Jef (ジェフ沖縄株式会社, jefu okinawa kabushiki gaisha?, Jef Okinawa Co., Ltd.) is a fast-food chain on Okinawa Island, with five restaurants in and around Naha (Yonabaru, Tomigusuku, Nishihara). They sport a menu featuring many homemade Okinawan specialties such as the Nūyaru burger and the Gōyā burger, hamburgers with a filling of SPAM and bitter melon omelet. They also have fried gōyā rings, similar to onion rings, and gōyā juice. Besides these more exotic offerings they also have normal ham- and cheeseburgers. The first restaurant opened on January 29, 1986.