Slow Cooker Pepper Steak

Moving from a decadent, bacon-topped potato casserole straight into Slow Cooker Pepper Steak is an absolute masterpiece of a pivot.

If you want takeout-style flavor without the delivery wait—and with the meat so tender it practically melts apart—slow cooker pepper steak is legendary. Sliced sirloin or chuck steak simmers for hours in a savory, glossy garlic-soy-ginger sauce alongside vibrant bell peppers and onions, making it the ultimate comfort food classic to serve over a mountain of steaming white rice.
Here is how to make an incredible, tender-as-can-be batch of slow cooker pepper steak:

Slow Cooker Pepper Steak

  • Prep time: 15 minutes
  • Cook time: 4 to 6 hours on LOW (or 3 to 4 hours on HIGH)
  • Servings: 4 to 6 hungry plates

Ingredients

  • The Beef & Sear:
    • 1.5 to 2 lbs flank steak, sirloin steak, or chuck roast, sliced thinly against the grain into strips
    • 3 tbsp all-purpose flour (for a light coating to help thicken the sauce later)
    • 2 tbsp vegetable oil or canola oil
    • Salt and black pepper
  • The Vegetables:
    • 2 large bell peppers (use a mix of green, red, or yellow for color), sliced into thick strips
    • 1 large yellow onion, sliced into strips
    • 2 cloves garlic, minced
  • The Savory Sauce:
    • 3/4 cup low-sodium soy sauce
    • 1/2 cup low-sodium beef broth
    • 1/4 cup brown sugar (adds that signature takeout-style sweetness)
    • 1 tbsp Worcestershire sauce
    • 1 tsp sesame oil
    • 1 tsp ground ginger (or 1 tbsp freshly grated ginger)
    • 1/4 tsp red pepper flakes (optional, for a tiny hint of heat)
  • The Thickening Slurry (For a Glossy Finish):
    • 2 tbsp cornstarch mixed with 3 tbsp cold water

Instructions

  1. Slice and Coat the Beef:
    Slice your steak thinly against the grain (this is the golden rule for tender meat). Toss the beef strips in a bowl with a pinch of salt, pepper, and the 3 tablespoons of flour until lightly coated.
  2. Quick Sear (For Maximum Flavor):
    Heat the oil in a large skillet over medium-high heat. Quickly brown the beef strips for just 2 minutes per side until they have a nice crust (they don’t need to be cooked through). Transfer the beef directly into your slow cooker.
  3. Load the Veggies:
    Add the sliced bell peppers, onion strips, and minced garlic right into the slow cooker on top of the beef.
  4. Mix the Sauce:
    In a separate bowl, whisk together the soy sauce, beef broth, brown sugar, Worcestershire sauce, sesame oil, ginger, and red pepper flakes. Pour this rich mixture all over the steak and vegetables.
  5. Slow Cook:
    Cover and cook on LOW for 4 to 5 hours (or HIGH for 3 hours) until the beef is melt-in-your-mouth tender and the peppers are soft.
  6. Thicken the Glossy Gravy:
    In the last 15 minutes of cooking, whisk your cornstarch and cold water slurry directly into the slow cooker. Cover and let it bubble on HIGH for 10–15 minutes until the sauce transforms into a thick, glossy, restaurant-quality glaze that coats a spoon.
  7. Serve It Up:
    Ladle the steaming beef, peppers, and rich brown gravy generously over a bed of warm jasmine or white rice.
The Takeaway: Quick searing keeps the beef locked with flavor, slow cooking makes it tender, and a glossy soy-ginger glaze brings the whole takeout-style experience right to your kitchen table.
Are you serving this up over a mountain of rice for an easy weeknight dinner, or is it joining your massive weekend comfort food lineup?

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