This simple stir-fry that has its roots in over a thousand years of trade history between okinawa and south east asia, japan, china and most recently america. It is the iconic dish of okinawa and tells its whole story in just one plate. Although you can substitute pork belly for the spamif you really have an aversion, just know that i asked one 90-year old okinawan lady what they had used on the island for their goya champuru before spam. Her response, i dont even remember.