Creating Sticky Beef Noodles is simple when you follow these steps:

1. Cook the Noodles: Start by cooking the rice noodles according to the package instructions. Drain and set aside.
2. Marinate the Beef: In a bowl, combine the sliced flank steak with soy sauce, oyster sauce, hoisin sauce, and cornstarch. Mix well and let it marinate for at least 10 minutes.
3. Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
4. Cook the Beef: Add the marinated beef to the skillet in a single layer. Sear for about 2-3 minutes until browned, then flip and cook for another 2 minutes. Remove the beef from the skillet and set aside.
5. Sauté Aromatics: In the same skillet, add minced garlic and ginger. Sauté for about 30 seconds until fragrant.
6. Add Vegetables: Toss in the sliced bell pepper and stir-fry for 2-3 minutes until slightly tender.
7. Combine Ingredients: Return the cooked beef to the skillet and add the cooked noodles. Toss everything together to combine.
8. Heat Through: Stir-fry for an additional 2-3 minutes until everything is heated through and well combined.
9. Garnish: Sprinkle with chopped green onions and sesame seeds before serving.

By following these steps, you will create a delicious and satisfying plate of Sticky Beef Noodles that is sure to impress.