Finely chop the beef, onion, and green onion.
Heat a pan, add cooking oil, and stir-fry the beef.
Once the beef is cooked, add the onion and green onion and stir-fry together.
Add the rice and stir-fry, mixing well with the other ingredients.
Season with soy sauce, salt, and pepper.
Once everything is stir-fried well, turn off the heat.
Finish by drizzling sesame oil and sprinkling gim (seaweed flakes) on top.