How do you cook pepper steak in a slow cooker?

Add sliced steak, peppers, onion, garlic, and tomatoes to the slow cooker. Pour in a soy sauce-based broth, cover, and cook on low for 5–6 hours or high for 3 hours. Add cornstarch near the end to thicken the sauce.

What is the best cut of meat for pepper steak?

Flank steak is ideal—it’s flavorful and becomes wonderfully tender in the slow cooker. Sirloin or round steak are great alternatives if sliced thinly.

How long does it take for steak to cook in a crockpot?

Flank steak needs 5–6 hours on low or 3 hours on high to get tender. The thinner the cut, the quicker it cooks.

Can you put raw steak in a slow cooker?

Absolutely. The slow cooker is designed for raw meat. Just make sure it reaches a safe internal temperature by the end of cooking.

Can I use a different cut of beef?

Yes! Sirloin or even round steak can work, as long as they’re sliced thin and cooked long enough to become tender.

Can I prep it the night before?

Totally! Add everything (except the cornstarch slurry) to the Crockpot insert, cover, and refrigerate overnight. Set it to cook in the morning.

Nope—but you can easily spice it up with crushed red pepper flakes or chili garlic sauce.

Crockpot Pepper Steak – Easy, Delicious Slow Cooker Dinner

Description

A flavorful, simple Chinese-inspired crockpot meal with flank steak and peppers, best served over rice or noodles.

Ingredients

Scale

2 lbs flank steak, sliced into strips

1 green bell pepper, sliced

1 red bell pepper, sliced

1 yellow bell pepper, sliced

1 large onion, sliced

3 garlic cloves, minced

1 can (14.5 oz) diced tomatoes, undrained

½ cup beef broth

¼ cup low sodium soy sauce

1 tbsp brown sugar

1 tbsp cornstarch

2 tbsp water (to mix with cornstarch)

Salt and pepper, to taste

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Instructions

1. Add flank steak, peppers, onion, garlic, and diced tomatoes to the slow cooker.

2. In a small bowl, mix beef broth, soy sauce, and brown sugar. Pour over meat and veggies.

3. Cover and cook on low for 5-6 hours or on high for 3 hours.

4. In the last 30 minutes, mix cornstarch and water; stir into the crockpot.

5. Let cook uncovered for 20-30 minutes until sauce thickens.

6. Serve over rice, noodles, or mashed potatoes.

Notes

Best cut of meat: Flank steak or sirloin.

Don’t skip the cornstarch step—essential for thickening the sauce.

Serve suggestions: rice, noodles, mashed potatoes, or cauliflower rice.

Optional additions: mushrooms, crushed red pepper for heat.

Can be meal prepped or frozen for later use.

Prep Time: 5 minutes
Cook Time: 5 hours
Category: Dinner
Method: Slow Cooker
Cuisine: Chinese-American

Nutrition

Serving Size: 1
Calories: 268
Sugar: 5g
Sodium: 585mg
Fat: 10g
Saturated Fat: 4g
Carbohydrates: 11g
Fiber: 2g
Protein: 32g
Cholesterol: 84mg