Cut the cabbage and beef into bite-sized pieces.
Julienne the onion and green onion.
Heat cooking oil in a pan and stir-fry the beef.
When the beef is half cooked, add the onion and green onion and stir-fry together.
Add the cabbage and stir-fry until it softens.
Season with soy sauce and pepper.
Place the stir-fried ingredients over rice.