Slow Cooker Pepper Steak

There’s nothing quite like the comfort of coming home to a kitchen filled with the promise of a warm, savory meal. Savor the Comfort of This Easy and Flavor-Packed Slow Cooker Pepper Steak becomes your best friend on busy weekdays or laid-back weekends alike. With just a few simple ingredients and minimal prep, you can transform flank steak strips, vibrant peppers, and onions into a dinner that feels gourmet but couldn’t be easier. The slow cooker does all the heavy lifting—infusing every bite of tender beef with a rich sauce built from beef broth, soy sauce, brown sugar, and a hint of ground ginger. While it gently simmers, you can tackle whatever else is on your to-do list, knowing that a mouthwatering meal is waiting.

This slow cooker pepper steak features tender flank steak surrounded by vibrant peppers and onions, all coated in a savory sauce. Perfect over rice for a hearty meal, this dish brings together the sweet, salty, and umami notes that satisfy every craving. As the flavors meld over hours of cooking, your home will feel like a restaurant and you’ll find yourself eagerly checking the lid for that first taste. With just 15 minutes of prep and 3–6 hours of hands-off cook time, it’s the ultimate beginner-friendly dinner. Whether you’re feeding a family of four or meal-prepping for the week, this recipe hits all the marks: straightforward, delicious, and utterly comforting.

KEY INGREDIENTS IN SLOW COOKER PEPPER STEAK

Before we dive into the step-by-step guide, let’s chat about what makes this pepper steak shine. Each ingredient brings its own special character to the dish—from the tender chew of the meat to the punchy sweetness of the peppers and the silky sauce that ties it all together. Here’s what you’ll need:

• Flank steak strips

A lean cut with great texture that soaks up sauces beautifully. When seared and slow-cooked, these strips become irresistibly tender.

• Vegetable oil

Provides a neutral base for searing, helping develop a caramelized crust on the steak that boosts the overall flavor.

• Onion

Adds natural sweetness and depth. As it softens, it melds seamlessly into the sauce, enriching every bite.

• Bell peppers (red and green)

Bring vibrant color and a mild, sweet crunch. The combination of red and green peppers balances sweetness with a touch of freshness.

• Garlic

Minced garlic infuses every layer with aromatic pungency, elevating the savory profile of the sauce.

• Beef broth

Forms the liquid foundation of the sauce, lending richness and meaty undertones that complement the steak.

• Soy sauce

Introduces a salty, umami kick that deepens the sauce and enhances the natural flavors of the beef.

• Cornstarch

Acts as a thickening agent, giving the sauce a luscious, silky consistency that clings to the meat and veggies.

• Brown sugar

Balances the saltiness with a touch of sweetness, creating that signature sweet-and-savory interplay.

• Worcestershire sauce

Adds complexity with its tangy, slightly funky flavor notes, rounding out the sauce beautifully.

• Ground ginger

Offers a gentle warmth and subtle zing, cutting through richness and brightening the overall profile.

• Black pepper

Provides a subtle heat and earthiness that underscores the dish without overpowering.

• Red pepper flakes (optional)

If you like a little kick, these flakes bring a spicy punch and extra dimension.

• Cooked rice

The perfect canvas for soaking up all that saucy goodness and turning this into a complete, satisfying meal.

• Chopped green onions

A fresh garnish that adds color, mild onion flavor, and a pleasing crunch at the very end.

HOW TO MAKE SLOW COOKER PEPPER STEAK

Now that you’ve gathered your ingredients, it’s time to bring everything together. This is where your skillet and slow cooker team up to build incredible flavor from searing through low-and-slow cooking. Follow these steps for perfectly tender pepper steak:

1. In a large skillet over medium-high heat, add the vegetable oil and let it heat until shimmering. Introduce the flank steak strips and sear them on all sides for about five minutes, until they develop a deep brown crust. This quick browning step locks in juices and creates flavorful fond. Transfer the seared steak to your slow cooker.

2. Using the same skillet—no need to wash it—add the sliced onion and bell peppers. Sauté for two to three minutes, just until they begin to soften and pick up browned bits from the pan. Stir in the minced garlic and cook for an additional minute, letting the garlic release its aroma without burning. Move this vegetable mixture into the slow cooker on top of the steak.

3. In a mixing bowl, whisk together the beef broth, soy sauce, cornstarch, brown sugar, Worcestershire sauce, ground ginger, black pepper, and red pepper flakes if desired. Whisking thoroughly ensures the cornstarch dissolves completely and the sauce will thicken properly as it cooks.

4. Pour the sauce mixture over the steak and vegetables in the slow cooker. Use a spoon or spatula to stir gently, making sure every strip of beef and every pepper slice is coated in that flavorful liquid.

5. Place the lid on the slow cooker and set it to cook on low for 5–6 hours or high for 3–4 hours. As the mixture simmers, the sauce will thicken and the steak will become melt-in-your-mouth tender.

6. When the cooking time is up, fluff your cooked rice and scoop the pepper steak over it. Sprinkle with chopped green onions for a fresh, colorful garnish, then serve immediately.

SERVING SUGGESTIONS FOR SLOW COOKER PEPPER STEAK

Once your slow cooker pepper steak is complete, you’ll want to serve it in ways that showcase its rich sauce and tender meat. Whether you’re hosting a casual dinner or meal-prepping for the week, these suggestions will elevate your presentation and complement the bold flavors. Here are four creative ideas to make each serving feel special:

• Classic over steamed rice

Pile the tender beef and peppers over a bed of fluffy white or brown rice. The rice soaks up every drop of sauce, creating a hearty, comforting bowl that’s perfect for any night of the week.

• Lettuce wrap bowls

For a lighter twist, serve spoonfuls of pepper steak in crisp lettuce leaves. The crunch contrasts beautifully with the tender meat, and it’s an easy way to add extra greens to your meal.

• Stir-fry noodle upgrade

Mix the finished pepper steak into cooked udon or rice noodles and toss gently. Top with sesame seeds and a drizzle of chili oil for an Asian-inspired noodle bowl that’s ready in minutes.

• Family-style platter

Spread the pepper steak on a large serving tray, surrounded by bowls of rice, steamed broccoli, and extra green onions. Let everyone help themselves for a festive, communal dinner vibe.

HOW TO STORE SLOW COOKER PEPPER STEAK

Storing your leftovers properly ensures that the flavors remain vibrant and the texture stays just right. Whether you’re packing lunch for tomorrow or stashing dinner for later in the week, follow these tips to keep your pepper steak tasting fresh:

• Refrigerator storage

Allow the pepper steak to cool slightly, then transfer to an airtight container. Store in the fridge for up to three days. When reheating, warm gently on the stovetop or in the microwave to preserve texture.

• Freezer method

If you want to save portions for longer, divide cooled pepper steak into freezer-safe bags or containers. Label with the date and freeze for up to two months. Thaw overnight in the fridge before reheating.

• Separate components

For optimal freshness, store the sauce and the beef-vegetable mixture separately. Combine just before reheating to maintain the best texture and prevent soggy peppers.

• Refreshing when reheating

Add a splash of beef broth or water when reheating to revive the sauce’s consistency. Heat gently on low to ensure the beef remains tender.

CONCLUSION

From busy weeknights to relaxed weekends, this Slow Cooker Pepper Steak recipe delivers a stress-free way to enjoy tender, flavor-packed beef with vibrant peppers and onions. With beginner-friendly steps, minimal hands-on time, and a sauce that marries sweet, salty, and umami notes, it’s a true crowd-pleaser. The slow cooker does all the work, so you can focus on setting the table, catching up with loved ones, or simply relaxing while the kitchen fills with savory goodness. Whether you serve it over rice, wrap it in lettuce, or toss it with noodles, the possibilities are endless—and every variation tastes like a special occasion.

Feel free to print this article and save it for later—you’ll want to have it on hand whenever you’re craving that comforting, home-cooked goodness. You can also find a FAQ below to answer any extra questions about ingredients, cooking times, or substitutions. If you give this recipe a try, please leave your comments, questions, or feedback—your kitchen adventures inspire me, and I’m here to help if you need any tips or troubleshooting along the way. Enjoy every delicious bite!

Print Recipe

Slow Cooker Pepper Steak

Author: Martha Williams Courses: Dinner

Difficulty: Beginner Prep Time 15 mins Cook Time 6 hrs Total Time 6 hrs 15 mins

Calories: 450

Description

This slow cooker pepper steak features tender flank steak surrounded by vibrant peppers and onions, all coated in a savory sauce. Perfect over rice for a hearty meal.

Ingredients

Scale

1/2x 1x 2x 3x

• 1 ½ lbs flank steak, cut into strips

• 1 tablespoon vegetable oil

• 1 onion, sliced

• 2 bell peppers (red and green), sliced

• 2 cloves garlic, minced

• 1 cup beef broth

• ¼ cup soy sauce

• 2 tablespoons cornstarch

• 2 tablespoons brown sugar

• 1 tablespoon Worcestershire sauce

• 1 teaspoon ground ginger

• ½ teaspoon black pepper

• ¼ teaspoon red pepper flakes (optional for heat)

• 2 cups cooked rice (for serving)

• Chopped green onions (for garnish)

Instructions

1. Start by heating the vegetable oil in a large skillet over medium-high heat. Once the oil is hot, add the flank steak strips and sear them until browned on all sides, about 5 minutes. This step enhances the flavor of the meat. Transfer the seared steak to the slow cooker.
2. In the same skillet (no need to clean), add the sliced onion and bell peppers. Sauté for about 2-3 minutes until they begin to soften. Add the minced garlic and cook for an additional minute. Transfer this mixture to the slow cooker.
3. In a mixing bowl, whisk together the beef broth, soy sauce, cornstarch, brown sugar, Worcestershire sauce, ground ginger, black pepper, and red pepper flakes if using. This will be the sauce that flavors your dish.
4. Pour the sauce mixture over the steak and vegetables in the slow cooker. Stir everything to ensure the beef and vegetables are well coated.
5. Cover the slow cooker with the lid and set it to cook on low for 5-6 hours or on high for 3-4 hours. The steak should be tender and the flavors well combined when it’s done.
6. Once cooked, you can serve the pepper steak over cooked rice. Garnish with chopped green onions for an added flavor and color.

Nutrition Facts

Serving Size 4

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Amount Per Serving

Calories 113kcal

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Note

• For added depth of flavor, consider marinating the flank steak in the soy sauce mixture overnight before cooking.
• This dish pairs excellently with steamed broccoli or other vegetables for a complete meal.
• Leftovers can be kept in the refrigerator for up to 3 days and can be reheated on the stovetop or in the microwave.
• Experiment with different color bell peppers for a more vibrant presentation.

Keywords: slow cooker, pepper steak, flank steak, dinner recipes, easy cooking, savory meals