Easy Crockpot Pepper Steak – Tender Slow Cooker Beef with Peppers

If you’re looking for an easy, comforting dinner that practically cooks itself, this Easy Crockpot Pepper Steak is a recipe worth adding to your weekly meal rotation. Tender strips of sirloin steak slowly cook in a rich, savory sauce with garlic, onions, tomatoes, and simple seasonings. Sweet bell peppers are added near the end for the perfect finishing touch.

This slow cooker pepper steak delivers all the satisfying flavors of a classic takeout-inspired beef dinner without spending hours in the kitchen. The beef becomes wonderfully tender, while the flavorful gravy is perfect for spooning over steamed rice or noodles.

With just 15 minutes of preparation and a few everyday ingredients, this Crockpot Pepper Steak makes a delicious family dinner for busy weeknights.

Why You’ll Love This Crockpot Pepper Steak

• Easy preparation: A little prep work is all you need before the slow cooker takes over.
• Tender, flavorful beef: Sirloin steak cooks in a savory sauce until deliciously tender.
• Colorful vegetables: Bell peppers and onions add sweetness, texture, and color.
• Rich homemade gravy: Beef bouillon, soy sauce, Worcestershire sauce, and tomatoes create a deeply satisfying sauce.
• Perfect for busy evenings: Prepare everything ahead of time and let dinner cook while you take care of other things.

Ingredients You’ll Need

This easy pepper steak recipe uses simple ingredients that come together to create a flavorful slow cooker meal.

• Sirloin steak: Two pounds of sirloin cut into thin strips against the grain. This gives you tender pieces of beef in every bite.
• Minced garlic: Adds a delicious savory flavor to the sauce.
• Olive oil: Used to brown the steak before slow cooking.
• Hot water and beef bouillon: Create the flavorful beef base for the gravy.
• Cornstarch: Helps thicken the sauce so it coats the steak and vegetables.
• Chopped onion: Adds sweetness and depth as it cooks.
• Soy sauce: Brings a rich, salty, savory flavor. Low-sodium soy sauce is preferred.
• Brown sugar: Adds a little sweetness to balance the savory ingredients.
• Diced tomatoes: A can of undrained diced tomatoes adds moisture and a mild tangy flavor.
• Worcestershire sauce: Gives the gravy extra depth and a classic savory taste.
• Black pepper: Adds gentle seasoning.
• Bell peppers: Two large peppers, sliced into strips, bring color and a slightly sweet flavor.

How to Make Easy Crockpot Pepper Steak

Follow these simple steps to prepare tender, flavorful pepper steak in your slow cooker.

Step 1: Brown the Steak

Heat the olive oil in a large skillet over medium-high heat. Add the thinly sliced sirloin steak and cook for about 3–5 minutes, stirring occasionally, until the outside is nicely browned.

The steak does not need to cook completely at this stage. Browning simply adds extra flavor before the beef goes into the slow cooker.

Step 2: Prepare the Beef Bouillon Mixture

In a small bowl or measuring cup, dissolve the beef bouillon cube in ⅔ cup of hot water.

Whisk in the cornstarch until the mixture is completely smooth. Make sure there are no lumps so the sauce can thicken evenly during cooking.

Pour the mixture into the bottom of your crockpot.

Step 3: Add the Sauce Ingredients

Add the minced garlic, soy sauce, brown sugar, undrained diced tomatoes, Worcestershire sauce, and black pepper to the slow cooker.

Stir gently to combine the ingredients and distribute the seasonings throughout the liquid.

Step 4: Add the Beef and Onion

Place the chopped onion and browned sirloin steak into the crockpot.

Pour in any flavorful juices remaining in the skillet. Toss everything gently so the beef and onions are coated in the sauce.

Step 5: Slow Cook Until Tender

Cover the slow cooker with its lid.

Cook on HIGH for 3 hours or LOW for 6–7 hours, until the steak is tender and the sauce is flavorful.

Avoid lifting the lid unnecessarily because this can release heat and extend the cooking time.

Step 6: Add the Bell Peppers

About one hour before serving, add the sliced bell peppers to the slow cooker.

Stir them gently into the sauce, cover, and continue cooking for the remaining 60 minutes.

Adding the peppers toward the end helps them keep their shape and a little texture instead of becoming overly soft.

Step 7: Serve and Enjoy

Once the steak is tender and the peppers are cooked, taste the gravy and adjust the salt and black pepper if needed.

Serve your Crockpot Pepper Steak hot over steamed rice, noodles, or cauliflower rice. Spoon plenty of the savory sauce over the top for a comforting, satisfying meal.

Tips for the Best Slow Cooker Pepper Steak

A few simple tips can help make this recipe even better.

• Slice against the grain: Cut the sirloin perpendicular to the visible muscle fibers. This helps make the beef easier to chew.
• Don’t skip browning: Searing the steak creates extra flavor that carries into the finished sauce.
• Add peppers later: Give the bell peppers only the final hour of cooking to help preserve their texture.
• Watch the salt: Bouillon, soy sauce, and Worcestershire sauce already contain salt. Taste the finished gravy before adding more.
• Use low-sodium ingredients: Low-sodium soy sauce and bouillon can help you control the overall saltiness.
• Scrape up the skillet: After browning the beef, add a small splash of water or beef broth to the hot skillet and scrape up the browned bits. Add that flavorful liquid to the crockpot.

Easy Variations and Substitutions

One of the best things about homemade pepper steak is how easy it is to customize.

Change the beef: Sirloin is a great choice, but flank steak or round steak can also be used. Slice either option against the grain.

Choose your favorite peppers: Red, green, yellow, and orange bell peppers all work well. You can use a combination for a colorful presentation.

Make it gluten-free: Replace regular soy sauce with tamari or coconut aminos. Check the labels on your Worcestershire sauce and beef bouillon to make sure they are gluten-free.

Use beef broth: If you don’t have a bouillon cube, replace the bouillon and hot water with an equal amount of beef broth.

Adjust the gravy thickness: For a thicker sauce, mix 1 tablespoon of cornstarch with 1 tablespoon of cold water. Stir it into the crockpot during the final 30 minutes of cooking.

What to Serve with Crockpot Pepper Steak

This savory beef dish tastes wonderful with sides that can soak up its delicious gravy.

Here are a few easy serving ideas:

• Steamed white rice: Jasmine or basmati rice makes a classic pairing.
• Brown rice: A hearty option that works beautifully with the sauce.
• Egg noodles: Their soft texture makes them perfect for serving with tender beef.
• Rice noodles: A delicious alternative to traditional rice.
• Cauliflower rice: A lighter, lower-carbohydrate serving option.
• Steamed broccoli: Adds freshness and color to the plate.
• Roasted snap peas: A simple vegetable side with a little crunch.
• Fresh cucumber salad: Provides a refreshing contrast to the rich beef gravy.

How to Store and Reheat Leftovers

If you have leftover Crockpot Pepper Steak, it’s easy to save for another meal.

Refrigerator: Allow the leftovers to cool, then transfer them to an airtight container. Refrigerate for up to 4 days.

Freezer: Place cooled portions in freezer-safe containers or bags and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.

Reheating: Warm leftovers in a saucepan over medium-low heat, stirring occasionally, until heated through. You can also microwave individual portions in 1-minute intervals, stirring between each interval.

Frequently Asked Questions

Can I make Crockpot Pepper Steak without browning the beef first?

Yes. You can place the raw sliced beef directly into the slow cooker if you want to save time. However, browning the steak first adds a deeper, richer flavor to the finished dish.

Can I use a different cut of beef?

Absolutely! Sirloin is recommended, but flank steak and round steak are also suitable alternatives. For the best texture, slice the beef against the grain.

When should I add the bell peppers?

Add the sliced bell peppers during the final hour of cooking. This gives them enough time to soften while helping them maintain some texture.

Why is my pepper steak sauce too thin?

If the gravy is thinner than you prefer, combine 1 tablespoon of cornstarch with 1 tablespoon of cold water. Stir the mixture into the crockpot and cook on HIGH for about 15 minutes, or until the sauce thickens. The recipe also includes an optional thickening mixture to use during the final 30 minutes.

Can I use chicken or pork instead of beef?

The original recipe is designed for sirloin steak. Chicken or pork would require adjustments to the cooking time and should be cooked to their appropriate safe internal temperatures rather than automatically following the beef cooking schedule.

What is the best way to serve pepper steak?

Steamed white rice is a classic choice because it absorbs the savory gravy. Egg noodles, rice noodles, and cauliflower rice are also delicious options.

Crockpot Pepper Steak Recipe at a Glance

• Recipe: Easy Crockpot Pepper Steak
• Prep Time: 15 minutes
• Cook Time: 4 hours listed total; 3 hours on HIGH or 6–7 hours on LOW according to the cooking instructions
• Total Time: 4 hours 15 minutes listed
• Servings: 4
• Cooking Method: Slow Cooker

Final Thoughts

This Easy Crockpot Pepper Steak is proof that a comforting homemade dinner doesn’t need to be complicated. Tender sirloin, colorful bell peppers, onions, and a rich savory gravy come together with simple ingredients and very little hands-on work.

Serve it over a generous helping of rice or noodles, and you’ve got a satisfying family meal that’s perfect for busy weeknights. Keep this slow cooker pepper steak recipe handy whenever you want an easy dinner packed with classic comfort-food flavor.

Easy Crockpot Pepper Steak – Printable Recipe

Prep Time: 15 minutes
Cook Time: 3 hours on HIGH or 6–7 hours on LOW
Total Time: 4 hours 15 minutes listed
Servings: 4

Ingredients

• 2 lbs. sirloin steak, cut into thin strips against the grain
• 2 tsp. minced garlic
• 2 Tbsp. olive oil
• ⅔ cup hot water
• 1 beef bouillon cube
• 1 Tbsp. cornstarch
• 1 cup chopped onion
• 3 Tbsp. low-sodium soy sauce
• 1 tsp. brown sugar
• 1 (14.5 oz) can diced tomatoes, undrained
• 2 tsp. Worcestershire sauce
• ½ tsp. black pepper, plus more to taste
• 2 large bell peppers, any color, sliced

Instructions

1. Heat olive oil in a large skillet over medium-high heat. Add the sliced sirloin and brown for 3–5 minutes. Do not cook completely through.
2. Dissolve the beef bouillon cube in ⅔ cup hot water. Whisk in the cornstarch until smooth.
3. Pour the bouillon mixture into the slow cooker.
4. Add minced garlic, soy sauce, brown sugar, diced tomatoes, Worcestershire sauce, and black pepper. Stir lightly.
5. Add the chopped onion and browned steak, including any juices left in the skillet. Toss to coat.
6. Cover and cook on HIGH for 3 hours or LOW for 6–7 hours, until the beef is tender.
7. Add the sliced bell peppers during the final hour. Cover and continue cooking for 60 minutes.
8. Taste and adjust the seasoning if needed. Serve hot over rice, noodles, or cauliflower rice.

Recipe Notes:

• For thicker gravy, mix 1 tablespoon cornstarch with 1 tablespoon cold water and stir it into the crockpot during the final 30 minutes.
• For a gluten-free version, use tamari instead of soy sauce and check that the bouillon and Worcestershire sauce are certified gluten-free.