If you are looking for an easy slow cooker dinner that tastes hearty, saucy, and full of homemade comfort, this Crock Pot Pepper Steak Recipe is the perfect meal to make. It is made with tender strips of beef, colorful bell peppers, sliced onions, garlic, and a rich savory sauce that cooks slowly until everything becomes flavorful and delicious.
This recipe is perfect for busy weeknights, family dinners, meal prep, Sunday meals, potlucks, or any day when you want a warm dinner without standing over the stove for hours.
The beef becomes tender.
The peppers add sweetness and color.
The onions melt into the sauce.
The garlic gives the dish a deep savory flavor.
The sauce becomes glossy, rich, and perfect for spooning over rice, noodles, or mashed potatoes.
This Crock Pot Pepper Steak is one of those recipes that feels simple but tastes like comfort food. It is easy to prepare, easy to customize, and perfect for feeding a hungry family.
Recipe Overview
| Detail | Information |
|---|---|
| Recipe Name | Crock Pot Pepper Steak |
| Prep Time | 20 minutes |
| Cook Time | 5–6 hours on low |
| High Cook Time | 3–4 hours |
| Total Time | About 6 hours 20 minutes |
| Servings | 4–6 |
| Course | Dinner, Main Dish |
| Cuisine | American / Asian-Inspired |
| Difficulty | Easy |
| Best Served With | White rice, noodles, mashed potatoes, or steamed vegetables |
Why You’ll Love This Crock Pot Pepper Steak
This Crock Pot Pepper Steak Recipe is a great dinner because it is simple, filling, and full of flavor.
You only need a few basic ingredients.
The slow cooker does most of the work.
The beef cooks low and slow until tender.
The bell peppers become soft, sweet, and flavorful.
The sauce thickens into a rich gravy-like coating that tastes amazing over rice.
This recipe is also very forgiving.
You can use sirloin, flank steak, round steak, chuck steak, stew meat, or even sliced roast beef.
You can make it mild or spicy.
You can add extra vegetables.
You can make the sauce sweeter, saltier, thicker, or lighter depending on your taste.
It is also a great meal prep recipe because leftovers reheat well and taste even better the next day.
Ingredients
For the Pepper Steak
- 1 ½ pounds beef sirloin, flank steak, round steak, or chuck steak, sliced into strips
- 2 bell peppers, sliced
- 1 large onion, thinly sliced
- 3 cloves garlic, minced
- 1 tablespoon olive oil, optional for searing
- ½ teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon paprika
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
For the Sauce
- ¾ cup beef broth
- ¼ cup soy sauce
- 2 tablespoons brown sugar
- 1 tablespoon Worcestershire sauce
- 1 tablespoon tomato paste or ketchup
- 1 teaspoon ground ginger or fresh grated ginger
- 1 teaspoon sesame oil, optional
- ½ teaspoon red pepper flakes, optional
- 1 tablespoon cornstarch
- 2 tablespoons cold water
Optional Garnish
- Chopped green onions
- Sesame seeds
- Fresh parsley
- Extra black pepper
- Red pepper flakes
- Lime wedges
Ingredient Notes
Beef
Beef sirloin is a great choice because it cooks tender and has good flavor.
Flank steak also works well, but it should be sliced thinly against the grain.
Round steak is affordable and works well in the slow cooker.
Chuck steak becomes very tender with longer cooking.
Stew beef can also be used, but the pieces may need more time to soften.
Bell Peppers
Use green, red, yellow, or orange bell peppers.
Green peppers give a stronger classic pepper steak flavor.
Red peppers are sweeter.
Yellow and orange peppers add bright color and a mild sweet taste.
A mix of colors makes the dish look more beautiful and appetizing.
Onion
Thinly sliced onion becomes soft and flavorful in the slow cooker.
It adds sweetness to the sauce and helps balance the savory beef.
Yellow onion, white onion, or sweet onion all work well.
Garlic
Fresh garlic gives the best flavor.
You can use garlic powder if needed, but fresh minced garlic makes the sauce taste richer.
Soy Sauce
Soy sauce gives the sauce its savory, salty flavor.
Use low-sodium soy sauce if you want to control the salt level.
Brown Sugar
Brown sugar balances the salty sauce and gives a light sweetness.
It also helps the sauce become glossy.
Worcestershire Sauce
Worcestershire sauce adds depth.
It gives the dish a rich, savory background flavor that makes the sauce taste more complete.
Cornstarch
Cornstarch thickens the sauce at the end.
Do not add dry cornstarch directly into the slow cooker.
Always mix it with cold water first to make a slurry.
Best Beef Cuts for Crock Pot Pepper Steak
Choosing the right beef makes a big difference.
The slow cooker can make tougher cuts tender, but slicing the beef properly is also important.
Good beef options include:
- Sirloin steak
- Flank steak
- Round steak
- Chuck steak
- Skirt steak
- Stew beef
- London broil
For the most tender result, slice the beef thinly against the grain.
The grain means the lines you can see running through the meat.
Cutting against those lines makes the beef easier to chew.
If your beef is hard to slice, place it in the freezer for 15–20 minutes.
Slightly firm beef is much easier to cut into thin strips.
Step-by-Step Instructions
Step 1: Slice the Beef
Place the beef on a cutting board.
Use a sharp knife to slice it into thin strips.
Try to keep the strips similar in size so they cook evenly.
Thin strips are better than large chunks because they absorb sauce faster and become tender more easily.
Pat the beef dry with paper towels.
Dry beef browns better if you decide to sear it first.
Step 2: Season the Beef
Place the beef strips in a large bowl.
Add salt, black pepper, paprika, garlic powder, and onion powder.
Toss until all the pieces are lightly coated.
This seasoning gives the beef flavor before it goes into the crock pot.
Even though the sauce is flavorful, seasoning the meat first makes the final dish taste better.
Step 3: Sear the Beef Optional but Recommended
Heat olive oil in a large skillet over medium-high heat.
Add the beef in small batches.
Sear each batch for 1–2 minutes per side.
You do not need to cook the beef all the way through.
You only want to brown the outside.
This step adds deeper flavor to the dish.
If you are short on time, you can skip searing and place the beef directly in the slow cooker.
The recipe will still taste good, but searing gives the sauce a richer taste.
Step 4: Add Beef to the Crock Pot
Place the seasoned beef into the bottom of the slow cooker.
Spread it into an even layer.
If you seared the beef, add any browned bits from the skillet into the slow cooker.
Those browned bits add extra flavor.
Step 5: Add Onion and Garlic
Add the sliced onion over the beef.
Add the minced garlic.
As the dish cooks, the onion softens and blends into the sauce.
The garlic releases flavor slowly and makes the whole kitchen smell amazing.
Step 6: Make the Sauce
In a medium bowl, whisk together beef broth, soy sauce, brown sugar, Worcestershire sauce, tomato paste or ketchup, ginger, sesame oil, and red pepper flakes if using.
Mix until the brown sugar dissolves.
The sauce should taste savory, slightly sweet, and balanced.
Pour the sauce over the beef and onions.
Stir gently so everything is coated.
Step 7: Slow Cook the Beef
Cover the slow cooker with the lid.
Cook on low for 5–6 hours or on high for 3–4 hours.
Low heat gives the best texture.
The beef should become tender and flavorful.
If you are using a tougher cut like chuck steak or round steak, cook closer to 6–7 hours on low.
If you are using sirloin, check it around 5 hours so it does not overcook.
Step 8: Add the Bell Peppers
Add the sliced bell peppers during the last 45–60 minutes of cooking.
This keeps them tender but still colorful.
If you add them at the beginning, they will become very soft.
Some people like soft peppers, and that is fine.
But for the best texture and brighter color, add them near the end.
Stir gently after adding the peppers.
Cover again and continue cooking.
Step 9: Thicken the Sauce
In a small bowl, mix cornstarch with cold water.
Stir until smooth.
Pour the slurry into the slow cooker.
Stir gently.
Cover and cook on high for 15–20 minutes, or until the sauce thickens.
The sauce should become glossy and coat the beef and peppers.
If you want it thicker, use an extra teaspoon of cornstarch mixed with water.
If you want it thinner, add a splash of beef broth.
Step 10: Taste and Adjust
Taste the sauce before serving.
Add more black pepper if you want a stronger flavor.
Add a little soy sauce if it needs more salt.
Add a pinch of brown sugar if it tastes too sharp.
Add red pepper flakes if you want heat.
A good pepper steak sauce should be savory, slightly sweet, rich, and balanced.
Step 11: Serve Hot
Spoon the Crock Pot Pepper Steak over hot white rice, brown rice, egg noodles, mashed potatoes, or cauliflower rice.
Add extra sauce over the top.
Garnish with green onions, sesame seeds, parsley, or more black pepper.
Serve immediately while hot.
How to Make Crock Pot Pepper Steak Extra Tender
Tender beef depends on three things: the cut of meat, the slicing method, and the cooking time.
Use beef that works well for slow cooking.
Slice it thinly against the grain.
Cook it low and slow.
If the beef is tough after the recommended time, it usually needs more cooking.
Keep cooking until it softens.
Slow cooker beef becomes tender when the connective tissue has enough time to break down.
Do not rush the process.
Low heat is better than high heat if you want the softest texture.
How to Keep Bell Peppers from Getting Mushy
Bell peppers cook faster than beef.
That is why it is best to add them near the end.
If you want tender but colorful peppers, add them during the last hour.
If you want firmer peppers, add them during the last 30 minutes.
If you want very soft peppers that melt into the sauce, add them at the beginning.
The choice depends on your taste.
For the picture-style pepper steak, colorful tender peppers are best, so add them near the end.
How to Make the Sauce Thicker
The easiest way to thicken pepper steak sauce is with cornstarch slurry.
Always mix cornstarch with cold water first.
Then stir it into the hot sauce.
Let it cook for 15–20 minutes.
The sauce will become thick and glossy.
You can also thicken the sauce by removing the lid during the last 20 minutes of cooking.
This allows some liquid to evaporate.
Another option is to remove some sauce, simmer it in a saucepan, and return it to the slow cooker.
How to Make the Sauce More Flavorful
For deeper flavor, sear the beef first.
Use beef broth instead of water.
Add fresh garlic.
Add ginger.
Use Worcestershire sauce.
Add a little tomato paste.
Use sesame oil for a slightly nutty taste.
Let the sauce simmer with the beef long enough to absorb flavor.
Taste at the end and adjust seasoning.
A small splash of vinegar or lime juice can brighten the flavor if the sauce tastes too heavy.
Delicious Variations
Spicy Crock Pot Pepper Steak
Add red pepper flakes, hot sauce, chili paste, or sliced jalapeños.
This gives the dish a warm spicy kick.
Use pepper jack cheese only if turning leftovers into sandwiches.
Mushroom Pepper Steak
Add sliced mushrooms during the last hour of cooking.
Mushrooms absorb the sauce and give the dish a rich earthy flavor.
This variation is especially good over mashed potatoes.
Honey Garlic Pepper Steak
Replace brown sugar with honey.
Add extra garlic.
The sauce becomes sweet, sticky, and savory.
This version is delicious with rice.
Pepper Steak with Tomatoes
Add diced tomatoes or tomato sauce to the slow cooker.
This gives the sauce a slightly tangy flavor.
It also makes the dish more saucy.
Broccoli Pepper Steak
Add broccoli florets during the last 30 minutes.
This makes the meal more colorful and adds extra vegetables.
Serve over rice for a complete dinner.
Pineapple Pepper Steak
Add pineapple chunks during the last 45 minutes.
The pineapple adds sweetness and a tropical flavor.
Use pineapple juice in place of part of the broth for extra sweetness.
Pepper Steak and Potatoes
Add diced potatoes at the beginning with the beef.
The potatoes will cook slowly and absorb the sauce.
This makes the dish heartier.
Low-Carb Pepper Steak
Skip the brown sugar or use a low-carb sweetener.
Serve with cauliflower rice, steamed cabbage, zucchini noodles, or roasted vegetables.
What to Serve with Crock Pot Pepper Steak
This dish is saucy, savory, and rich, so it pairs well with simple sides.
Great serving ideas include:
- White rice
- Brown rice
- Fried rice
- Egg noodles
- Lo mein noodles
- Mashed potatoes
- Baked potatoes
- Cauliflower rice
- Steamed broccoli
- Roasted carrots
- Green beans
- Garlic bread
- Dinner rolls
- Cucumber salad
- Stir-fried vegetables
For a classic meal, serve it over white rice.
For a comfort food dinner, serve it over mashed potatoes.
For a lighter meal, serve it with cauliflower rice and steamed vegetables.
For meal prep, divide it into containers with rice and broccoli.
Make-Ahead Instructions
This recipe is easy to prepare ahead.
Slice the beef the night before.
Slice the onions and peppers.
Mix the sauce ingredients in a jar.
Store everything separately in the refrigerator.
The next day, add the beef, onion, garlic, and sauce to the slow cooker.
Cook as directed.
Add the peppers near the end.
This makes dinner very easy on busy days.
Freezer Meal Instructions
You can also prepare Crock Pot Pepper Steak as a freezer meal.
Add sliced beef, onion, garlic, sauce ingredients, and seasonings to a freezer bag.
Do not add the cornstarch slurry yet.
Do not add the peppers unless you do not mind softer peppers.
Freeze flat for up to 3 months.
When ready to cook, thaw overnight in the refrigerator.
Add to the slow cooker and cook as directed.
Add fresh peppers near the end.
Thicken with cornstarch before serving.
Meal Prep Tips
This recipe works very well for meal prep.
Cook the pepper steak fully.
Let it cool slightly.
Divide into meal prep containers with rice, noodles, or vegetables.
Keep extra sauce in each container so the beef stays moist.
Store in the refrigerator for up to 4 days.
Reheat gently.
The flavor often gets better the next day because the beef has more time to absorb the sauce.
Storage
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Keep the beef, peppers, and sauce together.
The sauce helps keep the meat moist.
If the sauce thickens too much after chilling, add a splash of broth or water when reheating.
Reheating
Stovetop Method
Place leftovers in a skillet or saucepan.
Add a splash of beef broth or water.
Heat over medium-low heat until warm.
Stir gently.
Microwave Method
Place one serving in a microwave-safe bowl.
Cover loosely.
Heat for 1–2 minutes.
Stir halfway through.
Slow Cooker Method
Place leftovers back in the slow cooker.
Heat on low until warm.
This is useful if reheating a large amount.
Freezing
Crock Pot Pepper Steak freezes well.
Let it cool completely.
Place in freezer-safe containers or freezer bags.
Freeze for up to 3 months.
Thaw overnight in the refrigerator.
Reheat gently on the stove, microwave, or slow cooker.
For best texture, freeze the beef and sauce without the bell peppers, then add fresh peppers when reheating.
Common Mistakes to Avoid
Cutting Beef Too Thick
Thick pieces take longer to become tender.
Slice thin strips for the best texture.
Not Cutting Against the Grain
Cutting with the grain can make beef chewy.
Always slice against the grain.
Adding Peppers Too Early
Peppers can become mushy if cooked too long.
Add them near the end for better texture.
Using Too Much Soy Sauce
Soy sauce is salty.
Measure carefully.
Use low-sodium soy sauce if needed.
Skipping the Cornstarch Slurry
Without cornstarch, the sauce may be thin.
Add slurry at the end for a glossy sauce.
Overcooking Tender Beef
Sirloin can become dry if cooked too long.
Check it earlier than tougher cuts.
Not Tasting the Sauce
Always taste before serving.
Adjust salt, sweetness, or spice as needed.
Nutrition Estimate
| Serving | Amount |
|---|---|
| Calories | 320–500 |
| Protein | 28–40 g |
| Carbohydrates | 18–38 g |
| Fat | 12–24 g |
| Sodium | 650–1150 mg |
| Serving Size | 1 bowl without rice |
Nutrition values are approximate and depend on beef cut, sauce amount, toppings, and portion size.
Frequently Asked Questions
Can I put raw beef in the crock pot?
Yes.
You can add raw beef directly to the slow cooker.
Searing is optional, but it gives the dish a richer flavor.
What beef is best for Crock Pot Pepper Steak?
Sirloin, flank steak, round steak, chuck steak, and stew beef all work.
For the most tender texture, slice thinly against the grain.
When should I add the bell peppers?
Add them during the last 45–60 minutes for the best texture.
Add them earlier only if you like very soft peppers.
Can I use frozen peppers?
Yes.
Frozen peppers work, but they will be softer than fresh peppers.
Add them near the end.
Can I use chicken instead of beef?
Yes.
Use sliced chicken breast or chicken thighs.
Chicken cooks faster, so check it earlier.
Can I make this recipe spicy?
Yes.
Add red pepper flakes, chili paste, hot sauce, or jalapeños.
How do I make the sauce less salty?
Use low-sodium soy sauce.
Add more beef broth if needed.
A small spoon of brown sugar can also balance saltiness.
How do I make the sauce sweeter?
Add a little more brown sugar or honey.
Start with a small amount and taste.
Can I add more vegetables?
Yes.
Broccoli, mushrooms, carrots, snow peas, zucchini, and baby corn all work.
Add softer vegetables near the end.
Can I make this without cornstarch?
Yes.
You can simmer the sauce uncovered to reduce it, or use flour slurry instead.
Cornstarch gives the glossiest result.
Can I serve this over noodles?
Yes.
Egg noodles, lo mein noodles, ramen noodles, or rice noodles all taste good with pepper steak.
Can I make it ahead for a party?
Yes.
Cook it ahead, refrigerate it, and reheat gently before serving.
Add fresh peppers near the end if you want the best color.
Final Thoughts
This Crock Pot Pepper Steak Recipe is tender, saucy, colorful, and full of comforting flavor. The slow-cooked beef, bell peppers, onions, garlic, and savory sauce come together into an easy dinner that tastes rich and satisfying.
It is simple enough for a busy weeknight.
It is hearty enough for family dinner.
It is flexible enough for meal prep.
It is flavorful enough to serve to guests.
Serve it over rice, noodles, mashed potatoes, or vegetables, and enjoy a warm slow cooker meal that is easy, filling, and delicious.