- Cook noodles according to package directions. Drain and set aside. 
- Heat oil in a large pan or wok over medium-high heat. 
- Add steak and cook for 1–2 minutes until just browned. Remove and set aside. 
- Add onions, cabbage, and carrots to the pan. Stir-fry 2–3 minutes until slightly softened. 
- Add garlic and toss briefly, then return steak to the pan. 
- Stir in soy sauce, oyster sauce, dark soy sauce, sesame oil, and sugar. Toss everything together. 
- Add cooked noodles and stir-fry for another 1–2 minutes, making sure everything is evenly coated. 
- Sprinkle with green onions and serve hot.