This slow cooker pepper steak is an easy family favorite recipe that you will make again and again. It’s one of those comforting meals that are perfect as a delicious dinner any night of the week.
The slow cooker recipes are the perfect way to make a hearty meal in little time and without too much effort. This easy crockpot pepper steak recipe tastes like it took hours to cook, but in reality you can put everything together and let your slow cooker do all the work.
You’ll be able to spend more time with your whole family instead of slaving away over a hot stove.
Your family will love this delicious meal with all of its savory flavors – think tender meat, rich sauce and soft vegetables. It’s one of those comforting meals that is perfect for any night of the week, a slow cooker version of the classic Chinese pepper steak recipe.

This is a recipe that uses the slow cooker so it requires very little prep and still has amazing flavors. It also only takes 5-10 minutes of hands-on cooking time, which makes this a great option when you’re short on time but craving something hearty and delicious.
The slow cooking process helps the meat become tender and flavorful while infusing the beefy tomato sauce into every last bite.

How to Make This Slow Cooker Pepper Steak Recipe
This recipe calls for:
- 2 to 3 pounds sirloin steak
- 1 tablespoon olive oil
- Salt and black pepper, to taste
- ¼ cup cold water
- ½ teaspoon garlic powder
- 1 (14.5 ounce) can petite diced tomatoes
- 3 tablespoons soy sauce
- 2 beef bouillon cubes
- 1 tablespoon white wine vinegar
- 1 green bell pepper, seeded and cut into 1-inch pieces
- 1 red bell pepper, seeded and cut into 1-inch pieces
- 1 small onion, halved and cut into thick slices
- 2 tablespoons cornstarch and 1 tablespoon water mixed together to act as a sauce thickener
Supplies
Slow Cooker
Slow Cooker Liners

Spray slow cooker with nonstick cooking spray.
Season both sides of the steak with salt and black pepper as desired.
Heat a heavy large skillet over medium heat until the skillet is hot. Add the oil and then the steak. Brown beef on both sides but do not cook through.
Transfer the steak to the slow cooker liner.
Mix bouillon cube in hot water and deglaze the bottom of the skillet with the stock, scraping to remove any cooked on pieces.
Pour the liquid over the steak in the slow cooker.
Add red and green peppers, tomatoes to the beef mixture.



Combine cornstarch, water, garlic powder, soy sauce and vinegar in a small bowl. Pour over the steak.
Season with salt and black pepper, if desired.
Cover the slow cooker and cook crock pot pepper steak on high for 3 to 4 hours or low for 6 to 8 hours.


What to Serve with this Easy Pepper Steak Recipe
Slow cooker pepper steak is a hearty dish that can be served with:
- Mashed potatoes, roasted potatoes, cauliflower rice
- White rice or brown rice,
- Egg noodles to make it even heartier
- Vegetables like cauliflower or broccoli work as well

What Cuts of Beef should I use to make Pepper Steak?
There are several options for pepper steak and each will make a big difference in this easy recipe.
For best results, use thin-sliced beef strips, sirloin tip or even round steak, as they are a less expensive option with the same flavors.
Skirt steak or flank steak is another option as they are both tender and flavorful, holding up well with the marinade, but is on the pricey side.
When it comes to choosing the best cuts of meat, stew meat or chuck steaks are not a good option. Although this particular cut of beef can be flavorful and affordable; its toughness does not make it worth buying.

How to Store Leftover Pepper Steak
- Store your leftover pepper steak in the fridge in an airtight container.
- Reheat your leftovers in the microwave or in a skillet.
- This is a great meal prep meal because you can freeze leftovers for up to three months if needed.


Easy Slow Cooker Pepper Steak Recipe
Ingredients
- 2 to 3 pounds sirloin steak
- 1 tablespoon olive oil
- Salt and black pepper, to taste
- ¼ cup cold water
- ½ teaspoon garlic powder
- 1 (14.5 ounce) can petite diced tomatoes
- 3 tablespoons soy sauce
- 2 beef bouillon cubes
- 1 tablespoon white wine vinegar
- 1 green bell pepper, seeded and cut into 1-inch pieces
- 1 red bell pepper, seeded and cut into 1-inch pieces
- 1 small onion, halved and cut into thick slices
- 2 tablespoons cornstarch and 1 tablespoon water mixed together to act as a sauce thickener
Instructions
- Spray slow cooker with nonstick cooking spray.
- Season both sides of the steak with salt and black pepper as desired.
- Heat a heavy large skillet over medium heat until the skillet is hot. Add the oil and then the steak. Brown beef on both sides but do not cook through.
- Transfer the steak to the slow cooker liner.
- Mix bouillon cube in hot water and deglaze the bottom of the skillet with the stock, scraping to remove any cooked on pieces.
- Pour the liquid over the steak in the slow cooker.
- Add red and green peppers, stewed tomatoes to the beef mixture.
- Combine cornstarch, water, garlic powder, soy sauce and vinegar in a small bowl. Pour over the steak.
- Season with salt and black pepper, if desired.
- Cover the slow cooker and cook crock pot pepper steak on high for 3 to 4 hours or low for 6 to 8 hours.
Notes
What to Serve with this Easy Pepper Steak Recipe
- Mashed potatoes, roasted red potatoes, cauliflower rice
- White rice or brown rice,
- Egg noodles to make it even heartier
- Vegetables like cauliflower or broccoli work as well
What Cuts of Beef should I use to make Pepper Steak?
There are several options for pepper steak and each will make a big difference in this easy recipe.
For best results, use thin-sliced beef strips, sirloin tip or even round steak, as they are a less expensive option with the same flavors.
Skirt steak or flank steak is another option as they are both tender and flavorful, holding up well with the marinade, but is on the pricey side.
When it comes to choosing the best cuts of meat, stew meat or chuck steaks are not a good option. Although this particular cut of beef can be flavorful and affordable; its toughness does not make it worth buying.
How to Store Leftover Pepper Steak
Store your leftover pepper steak in the fridge in an airtight container.
Reheat your leftovers in the microwave or in a skillet.
This is a great meal prep meal because you can freeze leftovers for up to three months if needed.
Terry
Thursday 20th of October 2022
The recipe says petite diced tomatoes, but instructions says stewed tomatoes. Which one is correct?
momma lew
Friday 21st of October 2022
hello! The post was updated - it's diced.
Diana Goins
Saturday 26th of February 2022
I bought medium round sirloin steaks do I cut them in slices before I brown them or brown them whole and put in slow cooker then after it's done cut them up?? Ty!
momma lew
Monday 28th of February 2022
I would brown them after slicing, I am not sure it will be so easy to cut if you brown it whole.
Jennifer Fulk
Thursday 7th of October 2021
I disagree with the chuck steaks comment. I always use chuck steaks for slow cooker pepper steak and they cook up more flavorful and tender than round imo because they have some fat. That being said , sirloin tip steak thin sliced was on sale so I will try using that. It's a round cut so I'll see how it turns out.
Nancy Horn
Thursday 26th of August 2021
This sounds delicious and I'm glad you talked about steak cuts. I never know what to get and flank steak is my usual go-to (but I only buy it on sale).
momma lew
Thursday 26th of August 2021
It can be really confusing!! Glad I could help!