Slow Cooker Pepper Steak – Tender, Savory & Packed with Flavor

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This Slow Cooker Pepper Steak is a melt-in-your-mouth dish with tender beef, vibrant bell peppers, and a rich, flavorful sauce. It’s the perfect set-it-and-forget-it meal that will have your kitchen smelling amazing all day!

Why You’ll Love This Recipe

  • Effortless – Toss everything in the crock pot and let it work its magic.
  • Incredibly Tender Beef – Slow cooking makes the steak fall-apart delicious.
  • Perfectly Savory Sauce – A balance of soy sauce, Worcestershire, and brown sugar.
  • Versatile – Serve it over rice, noodles, or mashed potatoes!

Ingredients

  • 1 ½ lbs beef sirloin or flank steak, sliced into thin strips
  • 2 bell peppers (red, green, or yellow), sliced
  • 1 small onion, sliced
  • 3 cloves garlic, minced
  • 1 can (14.5 oz) diced tomatoes, undrained
  • ½ cup low-sodium soy sauce
  • ¼ cup beef broth
  • 1 tbsp Worcestershire sauce
  • 1 tbsp brown sugar
  • ½ tsp black pepper
  • ½ tsp ground ginger
  • ½ tsp crushed red pepper flakes (optional, for spice)
  • 2 tbsp cornstarch mixed with 2 tbsp cold water (to thicken)
  • 2 tbsp olive oil
  • Cooked white rice or noodles (for serving)

Step-by-Step Instructions

Step 1: Prepare the Ingredients
Heat olive oil in a skillet over medium-high heat.
Sear the steak strips for 2-3 minutes, until lightly browned. (Optional but adds flavor!)

Step 2: Slow Cook the Pepper Steak
Place sliced bell peppers, onion, and garlic at the bottom of the crock pot.
Add the browned steak on top.
Pour in diced tomatoes, soy sauce, beef broth, Worcestershire sauce, brown sugar, black pepper, ground ginger, and red pepper flakes. Stir to combine.
Cover and cook on LOW for 6-7 hours or HIGH for 3-4 hours, until the beef is fork-tender.

Step 3: Thicken the Sauce
In the last 30 minutes, mix cornstarch with cold water and stir into the crock pot.
Cover and let it thicken while finishing cooking.

Step 4: Serve & Enjoy
Serve hot over cooked rice or noodles.
Garnish with extra sliced green onions or sesame seeds if desired.

Serving Suggestions

  • Over Jasmine Rice – The sauce soaks into every bite.
  • With Egg Noodles – A rich, comforting twist.
  • Paired with Steamed Veggies – A complete and healthy meal.

Tips for the Best Pepper Steak

  • For Extra Flavor: Sear the beef before slow cooking.
  • Make It Spicier: Add more red pepper flakes or Sriracha.
  • For a Low-Carb Option: Serve over cauliflower rice.

Storage & Reheating

  • Refrigeration: Store in an airtight container for up to 4 days.
  • Freezing: Freeze in portions for up to 3 months.
  • Reheat: Warm in a skillet over medium heat or microwave in 30-second bursts.

FAQs

Can I use a different cut of beef?
Yes! Chuck roast, skirt steak, or stew meat work well.

Can I cook this in an Instant Pot?
Yes! Cook on high pressure for 20 minutes, then natural release for 10 minutes.

What’s the best thickener if I don’t have cornstarch?
You can use arrowroot powder or flour mixed with cold water.

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