Get ready to fall in love with your slow cooker all over again. This Slow Cooker Pepper Steak recipe is the ultimate “set it and forget it” meal, delivering incredibly tender beef and crisp-tender veggies in a rich, savory sauce. It’s a family-friendly dinner that transforms simple ingredients into a restaurant-quality dish with minimal effort. Perfect for busy weeknights, this recipe proves you don’t need to spend hours in the kitchen to create something truly delicious. Just a few minutes of prep in the morning, and you’ll come home to the amazing aroma of a perfectly cooked meal.
We’ve designed this pepper steak to be foolproof, ensuring the beef becomes melt-in-your-mouth tender without the vegetables turning to mush. The secret is in the timing and the simple, yet powerful, combination of flavors in the sauce. It’s a complete meal that will have everyone asking for seconds.
Why This Slow Cooker Pepper Steak is a Weeknight Winner
When your schedule is packed, you need dinner recipes that are reliable, easy, and delicious. This Slow Cooker Pepper Steak checks all those boxes and more.
- Effortless Preparation: With just about 15 minutes of hands-on time, you can have this meal simmering away in the crockpot. It does all the hard work for you.
- Incredibly Tender Beef: The magic of low and slow cooking breaks down tougher cuts of beef, like flank or sirloin steak, making them unbelievably tender and juicy.
- Rich & Savory Sauce: The sauce is a perfect blend of beef broth, soy sauce, and classic seasonings that creates a deep, savory flavor that coats every single bite.
- Family-Approved: It’s a hearty and satisfying meal that even picky eaters will love. It’s classic comfort food with a simple, delicious twist. For another family favorite, try this Ground Beef and Broccoli Rice Bowl.
The Simple Ingredients You’ll Need
You don’t need a long list of fancy ingredients to make the best Slow Cooker Pepper Steak. This recipe relies on a few pantry staples to create its signature flavor.
For the Pepper Steak:
- Beef: 1.5 pounds of flank steak or sirloin, thinly sliced against the grain.
- Bell Peppers: Two large bell peppers, one red and one green, sliced into strips.
- Onion: One large yellow onion, sliced.
- Garlic: Three cloves, minced.
- Beef Broth: One cup of low-sodium beef broth.
- Soy Sauce: 1/2 cup of low-sodium soy sauce. For a homemade touch, you can even make your own Homemade Teriyaki Sauce and adjust seasonings.
- Brown Sugar: Two tablespoons, packed.
- Ginger: One teaspoon of freshly grated ginger.
- Black Pepper: 1/2 teaspoon of freshly ground black pepper.
For the Slurry (to thicken):
- Cornstarch: Two tablespoons.
- Cold Water: 1/4 cup.
How to Make Slow Cooker Pepper Steak, Step-by-Step
Making this dish is as simple as a little slicing and stirring. Follow these steps for perfect results every time.
- Prepare the Beef: Pat the sliced beef dry with paper towels. This helps it brown nicely, which adds a deeper flavor to the dish.
- Combine Sauce Ingredients: In the bottom of your slow cooker, whisk together the beef broth, soy sauce, brown sugar, minced garlic, grated ginger, and black pepper.
- Add Beef and Veggies: Add the sliced onion and beef to the slow cooker. Stir everything together until the beef is fully coated in the sauce. Place the sliced bell peppers on top.
- Cook Low and Slow: Cover the slow cooker and cook on low for 4-6 hours or on high for 2-3 hours. The beef should be tender, but the peppers should still have a slight bite.
- Thicken the Sauce: About 30 minutes before serving, whisk the cornstarch and cold water together in a small bowl to create a slurry. Stir the slurry into the slow cooker. Cover and cook on high for the final 30 minutes, allowing the sauce to thicken into a beautiful glaze.
Tips for the Most Tender & Flavorful Pepper Steak
A few simple tips can elevate your crockpot pepper steak from great to absolutely unforgettable.
- Slice Against the Grain: For the most tender beef, it’s crucial to slice it thinly against the grain. This shortens the muscle fibers, making every bite easy to chew.
- Don’t Overcrowd: Use at least a 6-quart slow cooker to ensure there’s enough room for everything to cook evenly without steaming.
- Wait to Add Peppers: If you prefer your bell peppers to be very crisp, you can wait to add them during the last hour of cooking.
- A Touch of Acid: For a brighter flavor, a small splash of rice vinegar or a squeeze of lime juice stirred in at the end can really make the sauce pop. Love complex sauces? You might also enjoy the classic Steak au Poivre recipe (coming soon).
What to Serve with Pepper Steak
This versatile Slow Cooker Pepper Steak pairs wonderfully with a variety of sides. The rich sauce is perfect for spooning over a starchy base.
- Rice: Fluffy white or brown rice is a classic choice to soak up every last drop of the savory sauce.
- Noodles: Egg noodles or ramen noodles are also excellent options.
- Mashed Potatoes: For a truly comforting meal, serve it over creamy mashed potatoes.
- Quinoa: For a healthier, protein-packed alternative, quinoa is a great choice.
Storage and Reheating Instructions
One of the best things about this recipe is that the leftovers are just as delicious the next day!
- Storage: Allow the pepper steak to cool completely before transferring it to an airtight container. It will keep in the refrigerator for up to 4 days.
- Reheating: You can gently reheat it in a saucepan over medium-low heat or in the microwave. Add a splash of beef broth or water if the sauce has become too thick.
Frequently Asked Questions
Yes, you can absolutely put raw beef directly into the slow cooker for this recipe. The low and slow cooking method will cook it perfectly, making it tender and juicy. There is no need to sear the beef beforehand.
Yes, you can use frozen sliced peppers. Add them directly to the slow cooker (no need to thaw) about 1-2 hours before the dish is finished to ensure they don’t get too soft.
To prevent mushy vegetables, you can either add them on top of the meat and sauce without stirring them in, or add them during the last 1-2 hours of the cooking time. This gives them enough time to become tender but not overcooked.
The easiest way to thicken the sauce is with a cornstarch slurry. Simply whisk together 2 tablespoons of cornstarch with 1/4 cup of cold water, then stir it into the slow cooker during the last 30 minutes of cooking on high.
The best cuts for slow cooker pepper steak are flank steak, sirloin steak, or round steak. Slicing them thinly against the grain is key to ensuring they become melt-in-your-mouth tender.
Get the Recipe
Slow Cooker Pepper Steak: The Easiest Recipe!
Ingredients
Equipment
Method
- Pat the sliced beef dry with paper towels.
- In the bottom of your slow cooker, whisk together the beef broth, soy sauce, brown sugar, minced garlic, grated ginger, and black pepper.
- Add the sliced onion and beef to the slow cooker. Stir everything together until the beef is fully coated in the sauce. Place the sliced bell peppers on top.
- Cover the slow cooker and cook on low for 4-6 hours or on high for 2-3 hours. The beef should be tender.
- About 30 minutes before serving, whisk the cornstarch and cold water together in a small bowl to create a slurry. Stir the slurry into the slow cooker. Cover and cook on high for the final 30 minutes, allowing the sauce to thicken.
Notes
Tip 2: If you prefer very crisp bell peppers, add them during the last hour of cooking.
Tip 3: Serve hot over fluffy rice, noodles, or mashed potatoes to soak up the delicious sauce.
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