Heat the rice.
Stir-fry cabbage in tuna oil.
When golden, add tuna and stir-fry together.
Push ingredients to one side, add soy sauce and tuna extract, simmer slightly and mix together.
Add pepper and the rice, stir-fry everything together, then serve in a bowl.
Scramble only egg whites in a pan over low heat and place on top of the rice.
Drizzle sesame oil.