Slice the beef thinly.
Julienne the onion, carrot, and green onion.
In a bowl, mix soy sauce, sugar, minced garlic, sesame oil, and pepper to make the marinade.
Add the marinade to the beef and let it sit for 10 minutes.
Heat oil in a pan and stir-fry the marinated beef.
Add the vegetables and stir-fry together.
Place the cooked bulgogi on top of the rice.
Sprinkle sesame seeds and green onions to finish.