Heat the rice
Stir-fry cabbage in tuna oil
When slightly browned, add tuna and stir-fry together
Add soy sauce and tuna sauce to one side, let it simmer briefly, then mix it together
Add pepper and the rice, stir-fry and mix everything, then transfer to a bowl
Scramble only the egg whites in a pan over low heat and place on top of the rice
Drizzle with sesame oil