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Easy beef and pepper stir fry in a skillet with bell peppers and savory sauce, served with rice
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Easy Beef and Pepper Stir Fry (30 Minute Weeknight Dinner)

This easy beef and pepper stir fry is a quick 30-minute dinner packed with bold flavor and tender beef. Made with simple ingredients, it’s a perfect weeknight meal served over rice or no
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: dinner
Cuisine: Asian-Inspired
Keyword: 30 minute meal, beef stir fry, easy beef dinner, easy stir fry recipe, weeknight dinner recipe
Calories: 420kcal
Author: The Family Meal Plan Team
Cost: $14.00 - $17.00

Equipment

  • 1 Large skillet or wok
  • 1 Cutting Board
  • 1 Sharp knife
  • 1 Mixing bowl
  • 1 Wooden spoon or spatula

Ingredients

  • 1 lb Flank steak or sirloin
  • 2 medium Bell peppers
  • 1 small Onion
  • 3 cloves Garlic
  • 3 tbsp Soy sauce
  • 1 tbsp Oyster sauce (optional)
  • 1 tbsp Cornstarch
  • 1/2 cup Beef broth or water
  • 1 tbsp Brown sugar
  • 2 tbsp Cooking oil

Instructions

  • Slice beef thinly
    1 lb Flank steak or sirloin
    Thinly sliced raw beef on a cutting board for beef and pepper stir fry
  • Heat oil and cook beef
    2 tbsp Cooking oil
    Thin sliced beef cooking in a hot skillet for beef and pepper stir fry
  • Remove beef and cook vegetables
    1 small Onion, 2 medium Bell peppers
    Sliced bell peppers and onions cooking in a skillet for beef and pepper stir fry
  • Add garlic
    3 cloves Garlic
    Minced garlic added to peppers and onions in a skillet for beef and pepper stir fry
  • Mix sauce ingredients
    3 tbsp Soy sauce, 1 tbsp Oyster sauce (optional), 1 tbsp Cornstarch, 1 tbsp Brown sugar, 1/2 cup Beef broth or water
    Savory stir fry sauce being poured into a skillet with peppers and onions
  • Return beef and add sauce
    1 lb Flank steak or sirloin, 3 tbsp Soy sauce, 1 tbsp Oyster sauce (optional)
    Cooked beef returned to the skillet with peppers onions and sauce for beef and pepper stir fry
  • Stir until thickened
    Beef peppers and onions simmering in thickened sauce in a skillet
  • Serve hot over rice or noodles for a complete meal. Garnish with sliced green onions or sesame seeds if desired.
    Beef and pepper stir fry served over rice in a bowl

Notes

  • Use the right cut of beef: Flank steak or sirloin works best for stir fry because it stays tender when sliced thinly.
  • Slice against the grain: Cutting the beef this way helps keep it tender and easy to chew.
  • Cook over high heat: Stir fry cooks quickly, so higher heat helps sear the beef and prevent it from becoming tough.
  • Don’t overcrowd the pan: Cook beef in batches if needed so it browns instead of steaming.
  • Adjust the sauce as needed: If the sauce becomes too thick, add a splash of water or broth to loosen it.
  • Customize with vegetables: Broccoli, snap peas, carrots, or mushrooms can be added for variety.
  • Serving tip: Serve over rice or noodles and garnish with sesame seeds or green onions if desired.
  • Storage tip: Store leftovers in the refrigerator for up to 4 days and reheat gently for best texture.