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Slow Cooker Pepper Steak: Tender Beef with Vibrant Peppers and Savory Sauce

This Slow Cooker Pepper Steak is an easy and satisfying dish featuring tender beef, colorful bell peppers, and a savory-sweet sauce. Perfect for serving over rice or noodles, it’s a delicious meal that cooks effortlessly in the slow cooker.
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Prep Time 20 minutes
Cook Time 6 minutes
Total Time 6 minutes
Course Main Course
Cuisine American, Asian-inspired
Servings 6 servings
Calories 350 kcal

Ingredients
  

  • 3 pounds flank steak sliced into thin strips
  • 4 bell peppers sliced, mixed colors
  • 2 onions sliced
  • 3 tbsp olive oil
  • 2 cloves garlic minced
  • 1 1/2 cups soy sauce
  • 1 1/2 cups water
  • 1/2 cup corn starch
  • 1 cup brown sugar packed

Instructions
 

  • Slice 3 pounds of flank steak into thin strips. Place the sliced steak into a large ziplock bag with 1/2 cup cornstarch. Seal and shake until beef strips are evenly coated.
  • In the slow cooker, combine 3 tablespoons olive oil, 1 cup brown sugar, 1 1/2 cups soy sauce, 1 1/2 cups water, and 2 minced garlic cloves. Stir until sugar dissolves. Add the coated beef strips and spread evenly in the sauce.
  • Cover and set the slow cooker on low for approximately 6 hours. Avoid lifting the lid frequently to retain heat.
  • About 1 1/2 hours before the end, slice 4 bell peppers and 2 onions. Add to the slow cooker, re-cover, and continue cooking for the remaining time.
  • Once done, serve the pepper steak over steamed rice, noodles, or mashed potatoes. Enjoy the flavorful sauce and tender beef!

Notes

For extra flavor, add a dash of sesame oil and garnish with green onions just before serving.

Nutrition

Calories: 350kcal
Keyword Beef, dinner, Easy Recipe, Pepper Steak, slow cooker
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