Slow Cooker Pepper Steak
Description
Slow Cooker Pepper Steak is a hearty, flavor-packed dish made with tender strips of beef, colorful bell peppers, and a savory-sweet sauce infused with soy, garlic, and ginger. The slow cooking process allows the beef to become melt-in-your-mouth tender, while the peppers and onions soak up the delicious sauce. Perfect for busy days when you want a warm, comforting dinner ready with minimal effort.
Ingredients for Slow Cooker Pepper Steak
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2 lbs beef sirloin or flank steak, sliced into thin strips
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2 large bell peppers (red and green), sliced into strips
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1 large onion, sliced
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3 cloves garlic, minced
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1 cup beef broth
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1/3 cup low-sodium soy sauce
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1/4 cup brown sugar (or honey for a natural sweetener)
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2 tbsp cornstarch (for thickening)
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1/4 cup water (for cornstarch slurry)
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1 tbsp fresh ginger, grated (optional)
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1 tsp black pepper
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1/2 tsp red pepper flakes (optional, for heat)
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2 tbsp vegetable or olive oil
Instructions
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Prepare the Beef
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Slice the beef into thin strips. Lightly season with black pepper.
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Heat oil in a skillet over medium-high heat. Quickly sear the beef for 1–2 minutes to lock in flavor (optional, but adds depth).
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Assemble in the Slow Cooker
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Add seared beef, sliced onions, and bell peppers to the slow cooker.
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Make the Sauce
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In a bowl, whisk together beef broth, soy sauce, brown sugar, garlic, ginger, and red pepper flakes.
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Pour sauce over the beef and vegetables. Stir gently to combine.
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Cook
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Cover and cook on Low for 6–7 hours or High for 3–4 hours until beef is tender.
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Thicken the Sauce
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In the last 30 minutes, mix cornstarch with water to make a slurry. Stir it into the slow cooker and let it cook until sauce thickens.
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Serve
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Serve hot over steamed rice, noodles, or mashed potatoes. Garnish with sesame seeds or chopped green onions if desired.
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Notes
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Use a mix of red, yellow, and green peppers for a more colorful presentation.
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Flank steak gives a nice chew, while sirloin becomes very tender in the slow cooker.
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For a healthier twist, reduce sugar or use coconut sugar.
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If you prefer more sauce, increase broth to 1½ cups.
Tips
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Pre-searing the beef enhances flavor, but you can skip if you’re short on time.
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Cut peppers into thicker strips if you want them to retain more bite after slow cooking.
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Store leftovers in an airtight container in the fridge for up to 4 days or freeze for up to 3 months.
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If you like a richer sauce, add 1 tbsp oyster sauce or hoisin sauce before cooking.
Servings
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Serves: 6
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Serving Size: ~1½ cups (with sauce and vegetables)
Nutritional Information (per serving, without rice)
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Calories: ~310 kcal
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Protein: 28g
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Carbohydrates: 14g
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Sugars: 8g
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Fat: 15g
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Saturated Fat: 4g
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Fiber: 2g
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Sodium: ~800 mg
Health Benefits
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High in protein – supports muscle repair and maintenance.
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Rich in vitamin C – from bell peppers, boosting immunity.
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Iron and zinc – from beef, promoting energy and immune health.
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Slow-cooked – retains nutrients and enhances digestibility.
Q & A
Q1: Can I use chicken instead of beef?
Yes! Chicken breast or thighs work well, but reduce cooking time to Low for 4–5 hours or High for 2–3 hours.
Q2: How do I make it spicier?
Add sliced chili peppers or increase red pepper flakes to taste.
Q3: Can I prepare this the night before?
Yes. Assemble ingredients (except cornstarch slurry) in the slow cooker insert, refrigerate overnight, then start cooking in the morning.
Q4: What’s the best side dish?
Steamed white or brown rice, egg noodles, or even cauliflower rice for a low-carb option.
Q5: Will the peppers turn mushy?
If you want them crispier, add them during the last hour of cooking instead of at the start.