Cut the beef brisket into bite-sized pieces.
Finely chop the onion and green onion.
Heat cooking oil in a pan and stir-fry the beef brisket.
When the brisket is cooked, add the onion and green onion and stir-fry together.
Add the rice and mix everything evenly while stir-frying.
Season with soy sauce and salt to taste.
Turn off the heat, then finish with sesame oil and black pepper.