Cut the lamb into bite-sized pieces.
Chop the onion, green onion, and garlic.
Heat cooking oil in a pan and stir-fry the lamb.
When the lamb is about halfway cooked, add the onion, green onion, and garlic and stir-fry together.
Season with soy sauce, pepper, and salt.
Once all the ingredients are cooked, plate everything to complete the dish.