Get ready to discover your new favorite set-it-and-forget-it meal. This Slow Cooker Pepper Steak recipe delivers incredibly tender strips of beef and crisp-tender bell peppers swimming in a rich, savory sauce. It’s the kind of comforting, flavorful dinner that tastes like you spent hours in the kitchen, but our trusty slow cooker does all the work. Perfect for busy weeknights, this dish brings a restaurant-quality experience right to your home table with minimal effort.
We’ve perfected this recipe to ensure the beef is melt-in-your-mouth tender and the sauce has the perfect balance of savory and slightly sweet notes. Just a few minutes of prep in the morning, and you’ll come home to a delicious, aromatic meal that’s ready to serve over a bed of fluffy rice.

Why This is the Best Crock Pot Pepper Steak
This isn’t just another beef recipe; it’s a game-changer for your dinner rotation. Here’s why you’ll fall in love with this easy pepper steak recipe:
- Effortlessly Delicious: The slow cooker tenderizes the beef to perfection while melding the incredible flavors of the sauce. It’s a foolproof way to get a gourmet meal on the table.
- Minimal Prep Time: With just 15 minutes of hands-on time, you can have this meal prepped and cooking. It’s the ideal solution for anyone with a busy schedule.
- Family-Approved Flavor: The rich, savory sauce is a guaranteed crowd-pleaser. It’s packed with flavor but mild enough for even the pickiest eaters to enjoy.
- Versatile and Customizable: You can easily swap veggies or adjust the sauce to your liking. It’s a fantastic base recipe to make your own. For another easy weeknight meal, try our Crockpot Beef Stew recipe.
Choosing the Best Cut of Beef
The secret to incredibly tender pepper steak is choosing the right cut of beef. While a slow cooker is forgiving, starting with the right foundation makes all the difference. For this Slow Cooker Pepper Steak, I recommend using beef flank steak, sirloin steak, or even a chuck roast cut into thin strips.
Flank or Sirloin Steak
These cuts are relatively lean but have enough marbling to become incredibly tender during the slow cooking process. Slicing them thinly against the grain is key to achieving that perfect, shreddable texture. This is my top choice for the best result.
Chuck Roast
If you’re looking for a more budget-friendly option, a chuck roast works beautifully. It has more connective tissue, which breaks down over the long cooking time into rich, beefy flavor and results in exceptionally tender meat.
Key Ingredients for Pepper Steak
This recipe uses simple, easy-to-find ingredients to create its signature savory sauce. Here’s what you’ll need:
- Beef Sirloin or Flank Steak: The star of the show, sliced thin for maximum tenderness.
- Bell Peppers: A colorful mix of red and green bell peppers provides a classic, slightly sweet flavor and a pop of color.
- Onion & Garlic: These aromatics build the foundational flavor of the entire dish.
- Beef Broth: Use a low-sodium beef broth to control the saltiness of the final dish.
- Soy Sauce: Provides the deep, savory, umami flavor essential to pepper steak.
- Brown Sugar: A touch of sweetness to balance the salty and savory notes.
- Sesame Oil & Ginger: Adds a wonderful aroma and a hint of nutty, zesty flavor.
- Cornstarch: To create a slurry that thickens the sauce at the end into a beautiful glaze.
For those who love savory steak dishes, our Garlic Butter Steak Bites are another must-try.

How to Make Slow Cooker Pepper Steak Step-by-Step
Making this dish is as simple as a quick prep and letting the slow cooker handle the rest. Follow these easy steps for perfect results.
- Prepare the Beef: Slice your steak thinly against the grain. This is the most important step for tender beef! Pat the strips dry with a paper towel and season them with salt and pepper.
- Sear the Beef (Optional but Recommended): In a large skillet, heat a tablespoon of olive oil over medium-high heat. Sear the beef strips in batches for 1-2 minutes per side until browned. This step adds a huge layer of flavor. Transfer the seared beef to your slow cooker.
- Combine Sauce Ingredients: In a medium bowl, whisk together the beef broth, soy sauce, brown sugar, minced garlic, grated ginger, and sesame oil. Pour this mixture over the beef in the slow cooker.
- Slow Cook: Cover the slow cooker and cook on low for 4-5 hours or on high for 2-3 hours, until the beef is tender.
- Add the Vegetables: Add the sliced bell peppers and onion to the slow cooker. Stir to combine, replace the lid, and continue to cook for another 30-45 minutes, or until the vegetables are crisp-tender.
- Thicken the Sauce: In a small bowl, whisk together the cornstarch and cold water to create a slurry. Stir the slurry into the slow cooker. Turn the heat to high and cook for another 15 minutes, or until the sauce has thickened to your desired consistency.
Expert Tips for Success
Transform your homemade pepper steak from great to absolutely unforgettable with these simple but effective tips.
- Don’t Skip the Sear: Searing the beef before adding it to the slow cooker creates a deep, rich flavor through the Maillard reaction. It’s an extra step, but it’s worth it.
- Slice Against the Grain: Look for the long muscle fibers in the steak and slice perpendicular to them. This shortens the fibers, making the meat significantly more tender.
- Add Veggies Later: To prevent mushy peppers and onions, add them during the last 30-45 minutes of cooking. This keeps them vibrant and crisp-tender.
- Properly Thicken the Sauce: Always mix your cornstarch with cold water before adding it to the hot liquid to prevent clumps. For a faster thickening process, you can transfer the liquid to a saucepan on the stove, bring to a simmer, and then whisk in the slurry.
What to Serve with Your Pepper Steak
This Slow Cooker Pepper Steak is incredibly versatile and pairs well with a variety of sides. The rich, savory sauce is perfect for soaking into starches or complementing fresh vegetables.
- Rice: The classic pairing! Serve over fluffy white rice, brown rice, or even quinoa to soak up every last drop of the delicious sauce.
- Noodles: Egg noodles or lo mein noodles are excellent choices that complement the dish’s flavors perfectly.
- Mashed Potatoes: For a truly comforting meal, serve the pepper steak over creamy mashed potatoes. Try our amazing Sausage Hashbrown Casserole if you love potato dishes.
- Steamed Vegetables: Simple steamed broccoli or green beans make for a light and healthy side dish.
Storage and Reheating Instructions
Pepper steak makes for fantastic leftovers! Here’s how to store and reheat it properly:
Storage: Allow the pepper steak to cool completely before transferring it to an airtight container. It can be stored in the refrigerator for up to 4 days.
Reheating: For best results, gently reheat the pepper steak in a saucepan over medium-low heat until warmed through. You can also microwave it in 30-second intervals, stirring in between, but be careful not to overcook the beef.
Yes, you can put raw beef directly into the slow cooker. However, for the best flavor, we highly recommend searing the beef in a hot skillet for 1-2 minutes per side before adding it to the slow cooker. This step creates a richer, deeper flavor.
Absolutely! Pepper steak freezes very well. Allow it to cool completely, then store it in an airtight, freezer-safe container for up to 3 months. Thaw it in the refrigerator overnight before reheating gently on the stovetop.
To ensure your bell peppers and onions remain crisp-tender, add them to the slow cooker during the last 30-45 minutes of the cooking time. If you add them at the beginning, they will become too soft and mushy.
To thicken the sauce, make a cornstarch slurry by mixing equal parts cornstarch and cold water until smooth. Stir the slurry into the slow cooker during the last 15-20 minutes of cooking on high heat until the sauce reaches your desired consistency.
The best cuts are flank steak, sirloin steak, or chuck roast. Slice them thinly against the grain for the most tender results. The slow cooking process breaks down the muscle fibers, making these cuts perfect for this recipe.
Yes, you can put raw beef directly into the slow cooker. However, for the best flavor, we highly recommend searing the beef in a hot skillet for 1-2 minutes per side before adding it to the slow cooker. This step creates a richer, deeper flavor.
Absolutely! Pepper steak freezes very well. Allow it to cool completely, then store it in an airtight, freezer-safe container for up to 3 months. Thaw it in the refrigerator overnight before reheating gently on the stovetop.
To ensure your bell peppers and onions remain crisp-tender, add them to the slow cooker during the last 30-45 minutes of the cooking time. If you add them at the beginning, they will become too soft and mushy.
To thicken the sauce, make a cornstarch slurry by mixing equal parts cornstarch and cold water until smooth. Stir the slurry into the slow cooker during the last 15-20 minutes of cooking on high heat until the sauce reaches your desired consistency.
The best cuts are flank steak, sirloin steak, or chuck roast. Slice them thinly against the grain for the most tender results. The slow cooking process breaks down the muscle fibers, making these cuts perfect for this recipe.
Enjoy This Easy and Delicious Dinner!
This Slow Cooker Pepper Steak is a true testament to the magic of low-and-slow cooking. It’s a wonderfully simple recipe that delivers complex, satisfying flavors the whole family will love. We’re sure it will become a staple in your dinner rotation.
If you make this recipe, let us know how it turned out in the comments below! And don’t forget to save it to your favorite board on Pinterest!

Slow Cooker Pepper Steak Recipe

Slow Cooker Pepper Steak: The Ultimate Tender Beef Recipe
Ingredients
Equipment
Instructions
- Slice the steak thinly against the grain. Pat the strips dry and season with salt and pepper.
- In a large skillet, heat olive oil over medium-high heat. Sear beef strips in batches for 1-2 minutes per side until browned. Transfer seared beef to your slow cooker.
- In a medium bowl, whisk together the beef broth, soy sauce, brown sugar, minced garlic, grated ginger, and sesame oil. Pour this mixture over the beef in the slow cooker.
- Cover and cook on low for 4-5 hours or on high for 2-3 hours, until the beef is tender.
- Add the sliced bell peppers and onion to the slow cooker. Stir, cover, and cook for another 30-45 minutes until vegetables are crisp-tender.
- In a small bowl, whisk together the cornstarch and cold water to create a slurry. Stir the slurry into the slow cooker. Turn the heat to high and cook for 15 more minutes, until the sauce has thickened.
- Serve hot over rice or noodles.
Notes
Veggie Timing: Don't add the vegetables too early, or they will become mushy. Adding them in the last hour is key.
Freezing: This recipe freezes well! Cool completely and store in a freezer-safe container for up to 3 months.