Crockpot Pepper Steak (Tender, Savory & Effortless Slow Cooker Meal)
If you want a hearty, flavorful meal with minimal effort, this Crockpot Pepper Steak is a perfect choice. It combines tender slices of beef with vibrant bell peppers in a rich, savory sauce that develops deep flavor as it slowly cooks.

This dish is ideal for busy days when you want something comforting without spending hours in the kitchen. Just set it up in the morning, let the slow cooker do the work, and come back to a warm, satisfying meal that’s ready to serve.
Why This Recipe Works
This recipe works because slow cooking transforms tougher cuts of beef into tender, melt-in-your-mouth pieces.
Cooking the beef at a low temperature for several hours allows connective tissues to break down, resulting in a soft, juicy texture. The sauce—made with soy sauce, garlic, and broth—infuses the meat and vegetables with deep, savory flavor.
Adding bell peppers later in the cooking process ensures they stay slightly crisp instead of becoming overly soft, preserving both texture and color.
Ingredients
Each ingredient contributes to the overall depth and balance of the dish.
Beef is the star, typically using cuts like flank steak or sirloin for the best texture. Bell peppers add sweetness and freshness, while onions enhance flavor.
Soy sauce provides a savory base, and garlic adds aroma. A bit of cornstarch is used to thicken the sauce, giving it that classic glossy finish.
- 1½ lbs beef (flank steak or sirloin, sliced thin)
- 2 tablespoons cornstarch
- 2 tablespoons oil
For the Sauce:
- ½ cup soy sauce
- 1 cup beef broth
- 2 cloves garlic (minced)
- 1 tablespoon brown sugar
- 1 teaspoon ginger (optional)
For the Vegetables:
- 1 red bell pepper (sliced)
- 1 green bell pepper (sliced)
- 1 onion (sliced)
How to Make Crockpot Pepper Steak
Step-by-Step Instructions

Step 1. Prepare the Beef
Slice the beef into thin strips and toss with cornstarch to coat evenly.
Step 2. Sear the Beef (Optional but Recommended)
Heat oil in a skillet and quickly sear the beef until lightly browned. This step adds extra flavor.
Step 3. Add to Crockpot
Place the beef in the slow cooker.
Step 4. Make the Sauce
In a bowl, mix soy sauce, beef broth, garlic, brown sugar, and ginger.
Step 5. Combine and Cook
Pour the sauce over the beef. Cover and cook on low for 6–7 hours or on high for 3–4 hours.
Step 6. Add Vegetables
About 1 hour before cooking is complete, add bell peppers and onion.
Step 7. Thicken Sauce (If Needed)
If you prefer a thicker sauce, mix a little cornstarch with water and stir it in during the last 20 minutes.
Step 8. Serve
Serve hot over rice or noodles.
Pro Tips
Slice beef against the grain to ensure tenderness.
Do not skip the cornstarch coating—it helps both with texture and sauce thickening.
Adding peppers later prevents them from becoming too soft.
For deeper flavor, sear the beef before slow cooking.
Variations
This recipe is flexible and easy to adapt.
For a low-sodium version, use low-sodium soy sauce.
You can add vegetables like mushrooms or broccoli for extra nutrition.
For a spicier version, include chili flakes or sliced jalapeños.
If you prefer a sweeter sauce, increase the brown sugar slightly.
What to Serve With It
Crockpot pepper steak pairs perfectly with simple sides.
Serve it over steamed white or brown rice to soak up the sauce. It also works well with noodles or even mashed potatoes.
A side of steamed vegetables or a light salad complements the richness.
Storage & Meal Prep
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Reheat on the stove or in the microwave until warmed through.
This dish freezes well. Store in freezer-safe containers for up to 2 months.
Common Mistakes
Overcooking the peppers can make them mushy.
Skipping the cornstarch can result in a thin sauce.
Not slicing the beef properly can make it tough.
Using too much soy sauce without balancing flavors can make the dish overly salty.
FAQs
What cut of beef is best for pepper steak?
Flank steak or sirloin are ideal for tenderness and flavor.
Can I skip searing the beef?
Yes, but searing adds extra depth of flavor.
How do I make the sauce thicker?
Add a cornstarch slurry during the final cooking stage.
Can I cook this on high instead of low?
Yes, but low and slow gives better texture.
Can I make it ahead of time?
Yes, it stores and reheats very well.
Is this dish spicy?
No, but you can add spice if desired.

Crockpot Pepper Steak
Ingredients
Equipment
Method
- Slice beef into thin strips and toss with cornstarch until evenly coated.
- Heat oil in a skillet over medium-high heat and lightly brown the beef for extra flavor.
- Transfer beef to the slow cooker.
- In a bowl, mix soy sauce, beef broth, garlic, brown sugar, and ginger.
- Pour sauce over the beef. Cover and cook on low for 6–7 hours or high for 3–4 hours.
- Add sliced bell peppers and onion about 1 hour before cooking is done.
- If needed, mix 1 tablespoon cornstarch with water and stir into the slow cooker during the last 20 minutes.
- Serve hot over rice or noodles.
Video
Notes
- Slice beef against the grain for tenderness.
- Adding peppers later keeps them slightly crisp.
- Use low-sodium soy sauce if preferred.
- Searing beef enhances flavor but is optional.
- Adjust sweetness or saltiness to taste.
