A rich, savory-sweet beef stew with tender slices of steak, colorful bell peppers, and onions simmered in a deeply flavorful sauce—slow-cooked to perfection. This easy one-pot meal brings the taste of classic stir-fry comfort without the high heat or last-minute cooking. Just set it, forget it, and come back to a kitchen full of aroma and dinner ready to serve.


Why You’ll Love This Recipe

This isn’t just weeknight dinner—it’s effortless flavor. With juicy beef, crisp-tender vegetables, and a glossy sauce that balances soy, Worcestershire, and a hint of sweetness, every bite tastes like it was made from scratch. The slow cooker does all the work, breaking down the meat into melt-in-your-mouth tenderness while infusing every layer with umami depth.

Perfect for:

  • Busy weeknights
  • Meal prep days
  • Cold-weather comfort
  • Freezer-friendly leftovers

Ingredients

For the Pepper Steak

(Serves 4–6)

  • 2 lbs (900g) beef sirloin or flank steak, thinly sliced against the grain
  • 3 bell peppers (mix red, yellow, and green), cut into thin strips
  • 1 medium onion, sliced
  • 1 cup beef broth (low-sodium if preferred)
  • ½ cup soy sauce (or tamari for gluten-free)
  • ¼ cup Worcestershire sauce
  • 2 tbsp brown sugar (or honey/maple syrup for natural option)
  • 3 cloves garlic, minced
  • 1 tsp ground ginger (or 1 tbsp fresh grated ginger)
  • Optional: ½–1 tsp red pepper flakes (for gentle heat)
  • Freshly ground black pepper and salt (to season beef)

For Serving

  • Cooked rice (white, brown, or jasmine)
  • Mashed potatoes
  • Crusty bread
  • Steamed broccoli or snap peas
  • Sesame seeds or sliced green onions (for garnish)

Step-by-Step Instructions

1. Prep the Sauce & Beef

In a bowl:

  • Whisk together beef broth, soy sauce, Worcestershire sauce, brown sugar, minced garlic, and ginger until sugar dissolves and mixture is smooth.
  • Season sliced beef lightly with salt and pepper.

2. Layer in the Slow Cooker

In your crock pot:

  • Place sliced beef on the bottom.
  • Top with bell peppers and onion.
  • Pour sauce mixture evenly over everything.
  • Do not stir—this keeps the meat submerged for even cooking.

3. Slow Cook Until Tender

  • Cover and cook:
    • LOW for 5–6 hours, or
    • HIGH for 3–4 hours
  • Meat is done when fork-tender and peppers are soft but not mushy.

4. Adjust & Serve

  • Taste before serving. Adjust seasoning:
    • More soy sauce for saltiness
    • More brown sugar for sweetness
    • A splash of vinegar or lime juice to brighten
  • Remove any excess fat from the surface if desired.

Serve hot over:

  • Fluffy rice
  • Creamy mashed potatoes
  • With crusty bread to soak up the rich sauce

Garnish with green onions or sesame seeds for freshness and flair.


You Must Know

  • Slice beef thinly and against the grain —this ensures tenderness.
  • Don’t overcook on HIGH —flank steak can toughen if cooked too fast. LOW is best.
  • Use low-sodium soy sauce —you control the salt better.
  • Add veggies later? If you prefer crisper peppers, add them in the last 1–2 hours.
  • Let it rest 5 minutes —helps flavors settle.

Storage Tips

  • Store leftovers in an airtight container in the fridge for up to 4 days.
  • Reheat gently on the stove or in the microwave. Add a splash of broth if sauce thickens too much.
  • Freeze for up to 3 months —thaw overnight before reheating.

Ingredient Substitutions

Beef sirloin/flank
Skirt steak, chuck roast, or plant-based strips
Chuck needs longer cook time
Bell peppers
Poblano, banana peppers, or zucchini
For different texture or heat
Soy sauce
Coconut aminos or tamari
GF or lower-sodium options
Brown sugar
Honey, maple syrup, or coconut sugar
Natural sweeteners work well
Worcestershire
Vegan Worcestershire or soy sauce + splash of vinegar
Check for anchovies if vegetarian

Serving Suggestions

  • Pair with a simple cucumber salad or kimchi.
  • Great for lunchboxes (reheat safely).
  • Double the batch and freeze half for future comfort.
  • Serve family-style in a large bowl with chopsticks and spoons.

Cultural Context

Pepper steak has roots in American-Chinese cuisine—a fusion dish created in U.S. restaurants to appeal to local tastes. While not traditional in China, it combines stir-fry techniques with bold Western seasonings. This slow-cooker version honors that legacy by making it accessible, cozy, and deeply satisfying—without needing a wok.


Pro Tips

  • Double the recipe? Yes—perfect for large families or freezing.
  • Make ahead: Assemble ingredients the night before. Refrigerate and cook next day.
  • Want more veggies? Stir in sliced mushrooms or baby corn in the last hour.
  • Label your dish: People will ask for the recipe.
  • Say “ready?” before serving —it’s part of the ritual.

Frequently Asked Questions

Q: Can I use frozen bell peppers?
A: Not ideal—they release water and become mushy. Fresh works best.

Q: Why did my beef turn out tough?
A: Likely overcooked on HIGH or sliced with the grain. Use LOW setting and slice thinly across the grain.

Q: Is this gluten-free?
A: Only if using GF soy sauce/tamari and verifying Worcestershire label.

Q: Can I add pineapple or carrots?
A: Absolutely! Pineapple adds sweetness; carrots add color and texture.

Q: Can I make it in a Dutch oven?
A: Yes! Sear beef first, then simmer covered at 325°F for 2–3 hours.


Allergy Information

Contains: wheat (in soy sauce), fish (in some Worcestershire sauces).
Gluten-free option: Use certified GF soy sauce and Worcestershire.
Nut-free: This recipe is naturally nut-free.
Always check labels—especially on sauces and broths.


Nutrition Facts (Per Serving – Approximate)

Based on 6 servings (with rice)

  • Calories: 380
  • Fat: 14g
  • Saturated Fat: 5g
  • Carbohydrates: 28g
  • Fiber: 3g
  • Sugar: 10g
  • Protein: 36g
  • Sodium: 980mg

This dish doesn’t shout. It simmers quietly, filling the house with warmth and promise, saying everything a great meal should: “Sit down. Eat. You’re taken care of.” That’s how the best ones begin—not with fanfare, but with a pot, a plan, and someone who says, “Let’s make it together.”

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