Beef and Bell Pepper Stir Fry

Ingredients

• Beef sirloin (1 pound, thinly sliced against the grain)
• Bell peppers (2 cups, sliced (mixed colors for visual appeal))
• Onion (1 medium, sliced)
• Garlic (3 cloves, minced)
• Vegetable oil (2 tablespoons)
• Sesame oil (1 tablespoon)
• Soy sauce (3 tablespoons)
• Oyster sauce (2 tablespoons)
• Cornstarch (1 tablespoon)
• Salt (to taste)
• Pepper (to taste)

Instructions

1. In a small bowl, whisk together soy sauce, oyster sauce, sesame oil, and cornstarch until smooth. Set aside to allow the cornstarch to dissolve and thicken the sauce.
2. Heat vegetable oil in a large skillet or wok over high heat until shimmering.
3. Add the sliced beef sirloin to the skillet, spreading it out in a single layer. Stir fry for 2-3 minutes, until the beef is browned and just cooked through. Remove the beef from the skillet and set aside.
4. In the same skillet, add the sliced onion and minced garlic. Stir fry for about 2 minutes, until the onion is translucent and fragrant.
5. Add the sliced bell peppers to the skillet and continue to stir fry for another 2-3 minutes, until they are slightly tender but still crisp.
6. Return the cooked beef to the skillet and pour in the prepared sauce mixture. Stir fry for an additional 2 minutes, ensuring that the sauce thickens and evenly coats the beef and vegetables.
7. Season with salt and pepper to taste, adjusting for your preference.
8. Serve hot over steamed rice or noodles for a complete meal.