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