Follow these simple steps to create your Beef Chow Mein effortlessly:

1. Cook Noodles: Prepare chow mein noodles according to package instructions. Drain and set aside.
2. Prepare Beef: Season thinly sliced beef with salt and pepper.
3. Heat Oil: In a large pan or wok, heat 1 tablespoon of vegetable oil over medium-high heat.
4. Cook Beef: Add the beef to the hot pan and stir-fry for 2-3 minutes until browned. Remove beef and set aside.
5. Sauté Vegetables: In the same pan, add the remaining tablespoon of oil. Add garlic, bell peppers, and broccoli. Stir-fry for about 3-4 minutes.
6. Add Noodles: Toss in the cooked chow mein noodles, bean sprouts, and cooked beef.
7. Season: Pour in soy sauce, oyster sauce, and sesame oil. Stir everything together until heated through.
8. Finish with Green Onions: Add chopped green onions and mix well. Cook for an additional minute.
9. Serve: Remove from heat and serve hot. Adjust seasoning as needed.

These easy steps will guide you in preparing a delicious Beef Chow Mein that you can enjoy right from your kitchen!