Slow Cooker Pepper Steak with Bell Peppers and Onion

This Pepper Steak in a Crock Pot is a savory, tender, and flavorful dish that’s perfect for busy weeknights! Loaded with juicy beef strips, colorful bell peppers, and a rich savory sauce, this slow cooker beef recipe is served best over fluffy white rice. It’s a family favorite and a classic Asian-inspired comfort food meal!

Ingredients for Crock Pot Pepper Steak:

1.5 pounds beef sirloin or flank steak, thinly sliced

2 tablespoons vegetable oil

1 green bell pepper, sliced

1 red bell pepper, sliced

1 medium onion, sliced

3 tablespoons soy sauce

1 tablespoon Worcestershire sauce

1 tablespoon minced garlic

1 teaspoon ground black pepper

1/2 teaspoon salt

1/2 teaspoon crushed red pepper flakes (optional for a spicy kick)

1 cup beef broth

1 tablespoon cornstarch

2 tablespoons water

Cooked white rice, for serving

Instructions:

1. Sear the Beef (Optional):
   In a skillet over medium-high heat, heat the vegetable oil. Quickly sear the beef strips for 2–3 minutes until browned. This step adds deep flavor but can be skipped if you’re short on time.
2. Layer in Crock Pot:
   Add the browned beef (or raw if skipping sear), sliced bell peppers, and onion to your slow cooker.
3. Mix the Sauce:
   In a bowl, combine soy sauce, Worcestershire sauce, minced garlic, black pepper, salt, red pepper flakes (if using), and beef broth. Pour this savory sauce over the beef and veggies.
4. Slow Cook:

Cook on LOW for 6–7 hours

Or on HIGH for 3–4 hours
…until the beef is melt-in-your-mouth tender and full of flavor.

5. Thicken the Sauce:
   About 20 minutes before serving, mix the cornstarch with water until smooth. Stir it into the crock pot. Cover and continue cooking for another 15–20 minutes to thicken the sauce to a silky consistency.
6. Serve & Enjoy:
   Spoon the pepper steak over hot, cooked white rice for the ultimate slow cooker dinner.

Tips:

Try using brown rice or cauliflower rice for a healthy twist.

Add mushrooms or snap peas for extra texture.

Perfect for meal prep this dish reheats beautifully!

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