Follow these simple steps to create your Beef with Oyster Sauce:

1. Prepare the Beef: In a bowl, combine the sliced beef with cornstarch, oyster sauce, and soy sauce. Mix well and let it marinate for 10 minutes.
2. Heat the Oil: In a large skillet or wok, heat vegetable oil over medium-high heat.
3. Cook the Beef: Add the marinated beef to the skillet in a single layer. Sear for about 2-3 minutes until browned. Avoid overcrowding the pan.
4. Add Aromatics: Stir in the minced garlic and ginger, cooking for another minute until fragrant.
5. Incorporate Vegetables: Add the sliced bell pepper, broccoli florets, and carrot to the skillet. Stir-fry for 3-4 minutes until the vegetables begin to soften.
6. Season: Sprinkle with salt and pepper to taste. If desired, add a little more oyster sauce for extra flavor.
7. Finish Cooking: Continue to stir-fry until the beef is cooked through and the vegetables are tender-crisp, about 2-3 more minutes.
8. Garnish: Remove from heat and sprinkle with chopped green onions.
9. Serve: Serve the Beef with Oyster Sauce over cooked rice for a complete meal.

These straightforward steps will guide you in creating a delicious dish that’s sure to become a family favorite.