Pepper Steak in a Crock Pot – Tender, Saucy & Set-It-and-Forget-It

Pepper Steak in a Crock Pot is a slow-cooked version of a classic Chinese-American stir-fry — made effortlessly in your slow cooker. Tender strips of beef, sweet bell peppers, and onions are simmered all day in a savory, garlicky soy sauce-based gravy that thickens into a rich, flavorful coating.

This dish is perfect for busy weekdays, meal prep, or anytime you want a hearty, comforting dinner without hovering over the stove. Serve it over steamed rice, cauliflower rice, or noodles for a complete and satisfying meal that practically cooks itself.

Ingredients Overview

Beef

• Sirloin, Flank, or Round Steak: Slice against the grain into thin strips. These cuts become incredibly tender when slow-cooked.

• Coating in Cornstarch: Optional but helps slightly thicken the sauce as it cooks and adds body to the dish.

Vegetables

• Bell Peppers: Red and green for a colorful, sweet balance. Add them in the final hour to keep texture.

• Onion: Sliced yellow or white onions melt into the sauce and add depth.

• Garlic: A must for flavor. Use fresh or jarred minced garlic.

Sauce

• Low-Sodium Soy Sauce: Savory and umami-rich — low-sodium gives you better control over salt levels.

• Beef Broth: Forms the base of the sauce. Use low-sodium.

• Brown Sugar or Honey: Adds mild sweetness to balance the salt and acidity.

• Rice Vinegar: Brightens the dish (or use white or apple cider vinegar).

• Ginger (fresh or ground): Adds warmth and subtle heat.

• Cornstarch Slurry (added at the end): Thickens the sauce to glossy perfection.

This recipe is naturally dairy-free, high in protein, and easy to make gluten-free with tamari or coconut aminos.

Step-by-Step Instructions

1. Prep the Beef and Veggies

Ingredients:

• 1.5 to 2 lbs flank steak or sirloin, thinly sliced

• Salt & pepper to taste

• 1 large onion, sliced

• 3–4 garlic cloves, minced

• 1 red bell pepper, sliced

• 1 green bell pepper, sliced

Instructions:

1. Slice steak thinly against the grain. Season lightly with salt and pepper.

2. Thinly slice onion and bell peppers; set aside.

3. Mince garlic or use pre-minced garlic from a jar.

2. Make the Crock Pot Sauce

Ingredients:

• ½ cup low-sodium soy sauce

• 1 cup beef broth

• 1 tbsp brown sugar or honey

• 1 tbsp rice vinegar

• 1 tsp ground ginger or 1 tbsp fresh grated ginger

• Optional: ½ tsp red pepper flakes for heat

Instructions:

1. In a medium bowl, whisk together soy sauce, broth, sugar, vinegar, garlic, and ginger.

2. Pour over beef and onions in the slow cooker.

3. Cook Low and Slow

Instructions:

1. Layer sliced beef and onions in the crock pot.

2. Pour sauce mixture over everything.

3. Cover and cook on LOW for 6–7 hours or HIGH for 3–4 hours, until beef is tender.

4. Add Bell Peppers & Thicken Sauce

Ingredients:

• Sliced red and green bell peppers

• 1½ tbsp cornstarch + 2 tbsp cold water (slurry)

Instructions:

1. In the final 45–60 minutes, stir in bell peppers and cornstarch slurry.

2. Cover and cook on HIGH until peppers are tender-crisp and sauce thickens slightly.

3. Taste and adjust seasoning if needed (soy sauce, sugar, or vinegar).

Optional: Stir in a splash of sesame oil or garnish with sesame seeds for added flavor.

Tips, Variations & Substitutions

• Gluten-free version: Use tamari or coconut aminos instead of soy sauce.

• Low-carb option: Serve over cauliflower rice and skip cornstarch (or use xanthan gum).

• Add heat: Use red pepper flakes or sliced jalapeños.

• Add mushrooms or snow peas: Stir in with the bell peppers.

• Swap meat: Use thinly sliced chicken breast or pork tenderloin instead.

Pro Tip: Always add bell peppers toward the end — this keeps them from becoming mushy.

Serving Ideas & Occasions

This easy crock pot pepper steak is perfect for:

• Family dinners

• Meal prep lunches

• Comfort food nights

• Set-it-and-forget-it entertaining

Serve with:

• Steamed jasmine or basmati rice

• Cauliflower rice for low carb

• Garlic noodles or stir-fried rice

• A side of steamed broccoli or bok choy

• Hot tea or sparkling water with lime

Nutritional & Health Notes

This dish is:

• High in protein

• Low in sugar (adjustable)

• Gluten-free adaptable

• Dairy-free

Estimated per serving (1 of 6):

• Calories: ~320

• Protein: ~30g

• Carbs: ~10g

• Fat: ~18g

• Fiber: ~2g

To lighten:

• Trim fat from beef

• Use less sugar or a natural sweetener

• Serve with extra veggies instead of rice

FAQs

Q1: Can I use frozen bell peppers?

A1: Yes, but add them only in the last 30 minutes to avoid overcooking. Fresh peppers will give a better texture.

Q2: Can I cook it overnight?

A2: Yes, but use the LOW setting and add bell peppers in the morning or prep them separately.

Q3: Can I make this dish spicy?

A3: Definitely. Add red pepper flakes, chili paste, or sliced fresh chilies to the sauce.

Q4: How do I store and reheat leftovers?

A4: Store in an airtight container in the fridge for up to 4 days. Reheat gently on the stove or in the microwave.

Q5: Can I freeze it?

A5: Yes. Freeze cooked and cooled pepper steak in airtight containers for up to 2 months. Thaw and reheat slowly to preserve texture.

Q6: Is browning the beef necessary?

A6: No, but you can sear it first for extra flavor. This step adds depth but is optional for convenience.

Q7: Can I double the recipe?

A7: Yes, but make sure your slow cooker is large enough. Don’t overfill — aim for no more than ¾ full for best cooking results.

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