This Crock Pot Chinese Pepper Steak is cozy, saucy, and easy. The beef turns tender, the peppers stay colorful, and the sauce tastes rich, sweet, and savory. It makes a great dinner over rice when you want something simple but still full of flavor.
Servings: 6
Cook Time: 6 to 7 hours on low or 3 to 4 hours on high
Total Time: About 6 hours 15 minutes on low
Why I Love This Recipe
I love this recipe because it feels like takeout, but it is made right at home. The slow cooker does most of the work, and the house smells amazing while it cooks.
This is one of those meals I like to start earlier in the day, then come back to a warm dinner that tastes like I worked harder than I did.
- The beef gets soft and tender.
- The sauce is sweet, salty, and rich.
- The peppers add color and fresh flavor.
- It is great over rice, noodles, or mashed potatoes.
- Leftovers taste even better the next day.
What You’ll Need
- 2 pounds beef sirloin steak, sliced into thin strips
- 1 green bell pepper, sliced
- 1 red bell pepper, sliced
- 1 onion, sliced
- 3 cloves garlic, minced
- 1/2 cup low-sodium soy sauce
- 1/2 cup beef broth
- 1/4 cup brown sugar
- 2 tablespoons cornstarch
- 1 tablespoon sesame oil
- 1 tablespoon rice vinegar
- 1 teaspoon ground ginger
- 1/4 teaspoon black pepper
- 1/4 teaspoon red pepper flakes, optional
- 1 tablespoon sesame seeds, optional for serving
- 2 green onions, sliced, optional for serving
- Cooked white rice, for serving
Recipe and Instructions
Step 1: Add the Beef to the Crock Pot
Place 2 pounds of thin-sliced beef sirloin steak into the black oval crockpot.
Step 2: Add the Peppers and Onion
Add 1 sliced green bell pepper, 1 sliced red bell pepper, and 1 sliced onion over the beef.
Step 3: Mix the Sauce
In a bowl, whisk together 1/2 cup low-sodium soy sauce, 1/2 cup beef broth, 1/4 cup brown sugar, 1 tablespoon sesame oil, 1 tablespoon rice vinegar, 1 teaspoon ground ginger, 1/4 teaspoon black pepper, 1/4 teaspoon red pepper flakes if using, and 3 minced garlic cloves.
Step 4: Pour Sauce Into the Crock Pot
Pour the sauce over the beef, peppers, and onion. Gently stir so everything gets coated.
Step 5: Slow Cook
Cover and cook on low for 6 to 7 hours or on high for 3 to 4 hours, until the beef is tender.
Step 6: Thicken the Sauce
In a small bowl, mix 2 tablespoons cornstarch with 2 tablespoons water. Stir it into the crockpot. Cover and cook on high for 15 to 20 minutes, until the sauce thickens.
Step 7: Serve
Spoon the pepper steak over cooked white rice. Top with 1 tablespoon sesame seeds and 2 sliced green onions if you like.
Why This Recipe Works Quick Science
The slow cooker uses low, steady heat. That helps the beef become tender without drying out.
Soy sauce adds salt and deep flavor. Brown sugar balances the salty taste. Cornstarch thickens the sauce at the end, so it turns glossy and coats the beef well.
Pro Tips
- Slice the beef thin so it gets tender faster.
- Add peppers at the start for soft peppers, or add them during the last hour for firmer peppers.
- Use low-sodium soy sauce so the sauce does not get too salty.
- Do not skip the cornstarch slurry. It makes the sauce thick and shiny.
- Serve it over warm rice so the sauce soaks in.
Tools Required
- Black oval crockpot
- Cutting board
- Sharp knife
- Mixing bowl
- Small bowl
- Whisk
- Measuring cups
- Measuring spoons
- Spoon or tongs
Substitutions and Variations
- Use flank steak instead of sirloin.
- Use chicken broth if you do not have beef broth.
- Use honey instead of brown sugar.
- Add mushrooms for more flavor.
- Add broccoli during the last 30 minutes.
- Skip red pepper flakes for a mild version.
Make Ahead Tips
Slice the beef, peppers, and onion the night before. Mix the sauce and keep it in the fridge. In the morning, add everything to the crockpot and start cooking.
Common Mistakes
Do not cut the beef too thick. Thick pieces may stay chewy.
Do not add too much soy sauce. It can make the dish too salty.
Do not add cornstarch at the beginning. It works best near the end.
Do not cook the peppers too long if you want them crisp-tender.
What to Serve With
- White rice
- Brown rice
- Fried rice
- Lo mein noodles
- Steamed broccoli
- Egg rolls
- Cucumber salad
Leftovers and Storage
Store leftovers in an airtight container in the fridge for up to 4 days.
Reheat in the microwave or in a small pot until hot. Add a splash of beef broth if the sauce gets too thick.
Freeze for up to 2 months. Thaw in the fridge overnight before reheating.
Macros Information
Approximate per serving, without rice:
Calories: 310
Protein: 34g
Carbs: 14g
Fat: 13g
Fiber: 2g
Sugar: 8g
Sodium: 780mg
FAQ
Q: Can I use frozen beef?
A: It is best to thaw the beef first so it cooks evenly.
Q: Can I make this less salty?
A: Yes. Use low-sodium soy sauce and low-sodium beef broth.
Q: Can I add the peppers later?
A: Yes. Add them during the last hour if you want them firmer.
Q: Can I cook this overnight?
A: Yes, but use the low setting and make sure your crockpot switches to warm after cooking.
Q: Can I double the recipe?
A: Yes, but only if your crockpot has enough room. Do not fill it more than about three-quarters full.
Final Thoughts
This Crock Pot Chinese Pepper Steak is simple, warm, and full of flavor. Make it on a busy day, serve it over rice, and enjoy every saucy bite. Leave a comment with how it turned out or any questions you have.