Finely chop the beef.
Dice the onion and green onion.
Mix soy sauce, sugar, minced garlic, and pepper to make bulgogi marinade.
Add the marinade and vegetables to the beef and mix well.
Heat oil in a pan and stir-fry the beef bulgogi.
Season the rice with sesame oil and salt.
Place the stir-fried beef bulgogi on the rice and shape it into a ball.
Wrap with seaweed.