Finely chop the cabbage.
Drain the oil from the canned tuna and set aside.
Heat some cooking oil in a pan and stir-fry the cabbage.
When the cabbage softens, add the tuna and stir-fry together.
Add the rice and mix well with the other ingredients while stir-frying.
Season with salt and pepper.
Turn off the heat and place cheese on top.
Once the cheese is melted, transfer to a bowl and serve.