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Slow Cooker Pepper Steak Recipe

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This Slow Cooker Pepper Steak is a flavorful, easy-to-make dish featuring tender beef sirloin, colorful bell peppers, and a rich savory sauce. Perfect for busy weeknights, it’s a comforting and satisfying meal that cooks low and slow for maximum flavor.

  • Total Time: 6 hours 10 minutes (on low)
  • Yield: 6 servings

Ingredients

  • 2 lbs beef sirloin strips or sirloin steak, sliced
  • 3 large colorful bell peppers, sliced thick
  • 1 large onion, sliced
  • 3 garlic cloves, minced
  • 3/4 cup beef broth
  • 3 beef bouillon cubes
  • 1/4 cup soy sauce
  • 2 tsp Worcestershire sauce
  • 2 tbsp honey
  • 1 tsp ground ginger
  • 1/2 tsp black pepper
  • 1/2 tsp salt
  • 2 tbsp cornstarch or flour

Instructions

  1. Add beef strips, sliced peppers, and onion into the slow cooker.
  2. Top with minced garlic.
  3. In a bowl, whisk together beef broth, soy sauce, Worcestershire sauce, honey, ginger, black pepper, and salt. Dissolve bouillon cubes in the mixture.
  4. Pour the sauce over the meat and vegetables in the slow cooker.
  5. Cover and cook on low for 6–7 hours or high for 3–4 hours until beef is tender and peppers are soft.
  6. About 30 minutes before serving, mix cornstarch or flour with a little cold water to form a slurry.
  7. Stir the slurry into the slow cooker to thicken the sauce.
  8. Serve hot over rice, noodles, or enjoy on its own.

Notes

  • Add bell peppers halfway through cooking for firmer texture.
  • Flank steak can be used instead of sirloin.
  • Mushrooms or snow peas can be added in the last hour for variety.
  • For heat, add crushed red pepper or sriracha sauce.
  • Reheat leftovers with a splash of water or broth if sauce thickens.
  • Author: Amelia
  • Prep Time: 10 minutes
  • Cook Time: 6–7 hours (low) or 3–4 hours (high)
  • Category: Main Course
  • Method: Slow Cooker
  • Cuisine: Asian-Inspired
  • Diet: Low Lactose

Nutrition

  • Serving Size: 1 serving
  • Calories: 350
  • Sugar: 10g
  • Sodium: 900mg
  • Fat: 18g
  • Saturated Fat: 6g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 14g
  • Fiber: 2g
  • Protein: 32g
  • Cholesterol: 85mg