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Black Pepper Beef, Mushroom & Green Bean Stir-Fry

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Black pepper beef, mushroom & green bean stir-fry is a bold, savory, and slightly spicy dish made with tender beef, fresh green beans, mushrooms, and a peppery soy-based sauce. It’s a quick and flavorful meal perfect for busy weeknights.

Ingredients

  • 1 lb flank steak or sirloin, thinly sliced against the grain
  • 2 cups green beans, trimmed
  • 1 1/2 cups sliced mushrooms (button or cremini)
  • 2 cloves garlic, minced
  • 1 tsp ginger, minced
  • 2 tbsp oil (vegetable or sesame), divided
  • 3 tbsp soy sauce
  • 1 tbsp oyster sauce
  • 1/3 cup water or beef broth
  • 1 tsp cornstarch
  • 1 tsp brown sugar or honey
  • 11 1/2 tsp freshly cracked black pepper (to taste)
  • 1 tsp rice vinegar or Shaoxing wine (optional)

Instructions

  1. In a small bowl, whisk together soy sauce, oyster sauce, water or broth, cornstarch, brown sugar or honey, black pepper, and vinegar or Shaoxing wine (if using). Set aside.
  2. Heat 1 tbsp oil in a large wok or skillet over high heat. Sear the beef in batches until just browned. Remove and set aside.
  3. Add the remaining oil to the pan. Stir-fry green beans for 3–4 minutes until just tender.
  4. Add mushrooms and cook for another 2–3 minutes until browned.
  5. Add garlic and ginger, stir-fry for 1 minute until fragrant.
  6. Return beef to the pan, pour in the sauce, and stir everything together until the sauce thickens and evenly coats the ingredients.
  7. Serve hot over rice or noodles, topped with extra cracked black pepper if desired.

Notes

  • Use snap peas or broccoli instead of green beans if preferred.
  • Replace beef with chicken, tofu, or tempeh for variation.
  • Marinate beef in soy sauce and cornstarch for added tenderness.
  • Use low-sodium soy sauce and skip oyster sauce for a lighter version.
  • Add chili flakes or chili oil for extra spice.

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