Cans of "Spam" luncheon meat are displayed at a market in Naha on the southern Japanese island of Okinawa March 5, 2008. Spam, "taco rice" and A&W Root Beer - if you're looking to sample authentic Okinawan cuisine, these are musts for the menu. The southern Japanese island may be best known abroad for a healthy diet heavy on tofu and bitter-tasting vegetables called "goya", but Okinawans are just as likely to tuck into fast food burgers and other dishes first made familiar by American troops. Picture taken March 5, 2008. To match feature JAPAN-OKINAWA/FOOD REUTERS/Issei Kato (JAPAN)