Prepare the noodles according to the package instructions, cooking until al dente. Drain and set aside. If using chow mein noodles, rinse under cold water to stop the cooking process and prevent sticking.
In a small bowl, combine 1 tablespoon of soy sauce, oyster sauce, hoisin sauce, dark soy sauce, Shaoxing wine, sesame oil, and sugar. Stir well to create the sauce.
Place the thinly sliced beef in a bowl and add the remaining 1 tablespoon of soy sauce, tossing to coat. Let it marinate for about 5-10 minutes.
Heat 1 tablespoon of vegetable oil in a large wok or skillet over high heat. Add the marinated beef and stir-fry until browned and just cooked through. Remove the beef from the wok and set aside.
In the same wok, add the remaining vegetable oil. Sauté the garlic and ginger until fragrant. Add the sliced onion, carrots, cabbage, and bell pepper to the wok. Stir-fry the vegetables for a few minutes until they are tender but still crisp.
Return the cooked beef to the wok with the vegetables. Add the cooked noodles and the sauce. Toss everything together over high heat until the noodles are heated through and have absorbed the sauce.
Stir in the green onions and cook for an additional minute. Season with salt and pepper to taste. If desired, sprinkle sesame seeds over the top for garnish.