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Easy Tender Crockpot Pepper Steak Recipe for Perfect Weeknight Dinners

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A simple, tender pepper steak slow-cooked in a crockpot with bell peppers and a savory sauce, perfect for stress-free weeknight dinners.

Ingredients

Scale
  • 1.5 pounds beef sirloin steak, thinly sliced
  • 3 medium bell peppers, assorted colors, sliced into strips
  • 1 large onion, yellow or white, thinly sliced
  • 3 cloves garlic, minced
  • 2 teaspoons freshly cracked black pepper
  • 1/4 cup soy sauce
  • 1 cup beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 tablespoon brown sugar
  • 2 tablespoons cornstarch (mixed with cold water)
  • 1 tablespoon olive oil or vegetable oil (optional for searing)
  • Salt to taste (start with 1/2 teaspoon)

Instructions

  1. Thinly slice the sirloin steak against the grain into roughly 1/4-inch strips. Slice bell peppers into similar-sized strips, thinly slice the onion, and mince the garlic.
  2. Optional: Heat olive oil in a skillet over medium-high heat and quickly sear the beef strips in batches for 1-2 minutes until just browned. Do not overcrowd.
  3. In a mixing bowl, combine soy sauce, beef broth, Worcestershire sauce, brown sugar, minced garlic, and cracked black pepper. Stir until sugar dissolves.
  4. Layer sliced onions and bell peppers at the bottom of the crockpot. Add the seared or raw beef strips on top. Pour the sauce mixture evenly over everything.
  5. Cover and cook on low for 6-7 hours or on high for 3-4 hours until beef is tender and peppers are softened but still vibrant.
  6. About 20 minutes before serving, mix cornstarch with cold water until smooth. Stir the slurry into the crockpot and turn heat to high. Cook uncovered for 15-20 minutes until sauce thickens.
  7. Taste and adjust salt or pepper if needed. Serve hot over steamed rice, noodles, or mashed potatoes.

Notes

Searing the beef is optional but adds flavor. Use freshly cracked black pepper for best taste. Slice steak thinly against the grain to keep it tender. Add cornstarch slurry late to control sauce thickness. Stir crockpot halfway through cooking if possible to prevent sticking. For gluten-free, substitute soy sauce with tamari. Variations include adding red pepper flakes for heat or using portobello mushrooms for a vegetarian version.

Nutrition

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