Creating the Mouthwatering Black Pepper Chicken and Mushroom Skillet is straightforward if you follow these simple steps:

1. Prepare the Ingredients: Slice the chicken, mushrooms, bell pepper, and broccoli. Mince the garlic and ginger.
2. Heat the Oil: In a large skillet, heat the vegetable oil over medium-high heat until shimmering.
3. Cook the Chicken: Add the chicken strips to the skillet. Season with salt and half of the black pepper. Stir-fry for 5-7 minutes, until the chicken is cooked through and browned.
4. Add Vegetables: Add the sliced mushrooms, bell pepper, and broccoli to the skillet. Stir-fry for an additional 3-4 minutes until the vegetables are tender but still crisp.
5. Add Aromatics: Stir in the minced garlic and ginger, cooking for 1 minute until fragrant.
6. Incorporate Sauces: Pour in the soy sauce and oyster sauce (if using). Sprinkle the remaining black pepper. Stir well to coat all ingredients evenly.
7. Cook and Serve: Allow the dish to cook for another 2-3 minutes until everything is heated through. Garnish with sliced green onions before serving.