Thinly slice the cabbage and stir-fry over medium heat.
Add 0.5 spoon of tuna sauce and 0.3 spoon of oyster sauce, and stir-fry.
When the cabbage is almost cooked, add drained canned tuna and stir-fry.
While stir-frying, fry an egg in the middle, and place everything on top of rice.