Finely chop the green onion and onion.
Sauté the green onion and onion in a pan with oil until fragrant.
Add chopped cooked beef and stir-fry.
Add rice and mix well with the other ingredients.
Season with soy sauce, salt, and pepper.
Push the rice to one side of the pan, crack an egg, scramble it, then mix with the rice.
Finish with seaweed flakes and sesame oil.