Cut the cabbage and beef into bite-sized pieces.
Slice the onion and chop the green onion.
Heat cooking oil in a pan and stir-fry the green onion to release its aroma.
Add the beef and stir-fry over high heat.
When the beef is half cooked, add the onion and cabbage and stir-fry together.
Season with soy sauce, pepper, and minced garlic.
Once all ingredients are cooked, serve over rice to finish.