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Beef and pepper stir fry with colorful vegetables and a savory sauce, served in a bowl

Beef and Pepper Stir-Fry

A quick and colorful dinner featuring savory beef, crisp tender peppers, and a balanced sauce that tastes like takeout, but made at home.
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Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: Asian, Chinese
Calories: 350
Ingredients Method Notes

Ingredients
  

For the Beef
  • 1 pound flank steak or sirloin, thinly sliced Choose cuts that remain tender when cooked quickly.
  • 2 tablespoons soy sauce For marinade.
  • 1 tablespoon cornstarch For tenderizing the beef.
  • 1 tablespoon oil For cooking.
For the Vegetables
  • 2 cups bell peppers, sliced Use a mix of colors for best flavor and presentation.
  • 1 medium onion, sliced Optional for added sweetness.
For the Sauce
  • 2 tablespoons soy sauce
  • 1 teaspoon garlic, minced
  • 1 teaspoon ginger, minced
  • 1 teaspoon brown sugar or honey
  • 1 tablespoon rice vinegar or lime juice
  • 1 tablespoon cornstarch mixed with water For thickening.

Method
 

Preparation
  1. Slice beef thinly across the grain and marinate with soy sauce, cornstarch, and oil for 10-15 minutes.
  2. Prepare the vegetables: slice the bell peppers and onion.
  3. Mix all sauce ingredients together and set aside.
Cooking
  1. Heat a large skillet or wok over high heat until very hot.
  2. Add marinated beef to the pan in batches, searing until browned but not overcooked. Remove and set aside.
  3. In the same pan, quickly stir-fry the peppers and onion for 2-4 minutes.
  4. Add the beef back into the pan and pour the sauce over it. Stir to combine and thicken the sauce.
  5. Serve immediately with rice, noodles, or as desired.

Notes

Ensure the pan is hot for proper searing. Do not overcrowd the pan to avoid steaming the beef.