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Slow Cooker Pepper Steak Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.1 from 14 reviews
  • Author: Sue
  • Prep Time: 15 minutes
  • Cook Time: 5 hours
  • Total Time: 5 hours 15 minutes
  • Yield: 6 servings
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: American-Chinese

Description

This Slow Cooker Pepper Steak is a flavorful and hearty dish featuring tender strips of flank steak cooked low and slow with colorful bell peppers, onions, and a savory garlic-ginger sauce. Perfect for an easy weeknight meal, this recipe delivers a deliciously tender beef and vegetable combination that pairs wonderfully with rice or noodles.


Ingredients

Beef and Vegetables

  • 2 lbs flank steak, sliced into thin strips
  • 1 large green bell pepper, sliced thick
  • 1 large red bell pepper, sliced thick
  • 1 large yellow bell pepper, sliced thick
  • 1 large onion, sliced thick
  • 4 cloves garlic, minced
  • 1 teaspoon ginger, peeled and minced

Sauce

  • 1 cup beef broth
  • ¼ cup soy sauce
  • 2 tablespoons cornstarch
  • 2 teaspoons white sugar (or to taste)
  • ½ teaspoon red pepper flakes
  • Salt and pepper, to taste

Toppings

  • Fresh green onions, sliced
  • Sesame seeds


Instructions

  1. Prepare the beef: Place the sliced flank steak into a 6-quart slow cooker (Crockpot), ensuring the meat is evenly spread.
  2. Add vegetables and aromatics: Layer the sliced bell peppers, thickly sliced onion, minced garlic, and minced ginger on top of the beef in the slow cooker.
  3. Make the sauce: In a separate bowl, whisk together the beef broth, soy sauce, cornstarch, white sugar, red pepper flakes, salt, and pepper until well combined and smooth.
  4. Combine and cook: Pour the sauce evenly over the beef and vegetables. Cover the slow cooker with its lid.
  5. Slow cook: Cook on low heat for 5 to 7 hours or on high heat for 2½ to 3½ hours until the beef is tender and the flavors meld together.
  6. Finish and serve: Stir the pepper steak mixture well just before serving. Garnish with sliced fresh green onions and sesame seeds. Serve hot over steamed rice or your favorite noodles for a complete meal.

Notes

  • For thicker sauce, mix additional cornstarch with water and stir in during last 15 minutes of cooking.
  • Adjust red pepper flakes to control spice level according to preference.
  • Flank steak can be substituted with sirloin or skirt steak if desired.
  • For gluten-free version, use tamari instead of soy sauce.
  • If fresh ginger is unavailable, ½ teaspoon ground ginger can be used as a substitute.
  • Leftovers store well refrigerated for up to 3 days and can be reheated gently on stovetop or microwave.