Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (2024)

The Magical Slow Cooker » Recipes » Dinner » Tasty, Easy Recipe for Slow Cooker Pepper Steak with Onion

by Sarah Olson on | Updated 218 Comments

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Pepper steak is a Chinese-inspired meal with plenty of sauce, bell peppers, and onions. This is a stir-fry-style meal but made in the slow cooker! Wonderful served over rice and has plenty of sauce (or gravy) to go around.

Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (1)

Why this recipe works:

This recipe is easy but has so much flavor, tastes like a restaurant-style meal but is easily made at home.

The sauce has quite a few ingredients, but all are pantry staples and easy to assemble.

The slow cooking tenderizes the beef way more than cooking on the stovetop, and the sauce marries together during the long cooking time.

How to Make Slow Cooker Pepper Steak

Ingredients

Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (2)
  • Beef – cut top sirloin or round steaks into 1/2 inch strips (some stores carry this already done for you and call it stir fry beef). Flank steak works but the beef will have a more stringy texture.
  • Bell peppers – one red and one green
  • White onion – sliced, though you can mince it if you have guest who don’t like big chunks of onions.
  • Water and beef bouillon cubes – mix hot water and bouillon cubes to start the base of the sauce.
  • Brown sugar – honey or white sugar work too.
  • Soy sauce – I use standard soy sauce in this recipe, not low sodium. Note that there is no table salt in this recipe so using regular soy sauce is important.
  • Worcestershire sauce – adds a touch of tang and layer of flavor to the sauce.
  • Cornstarch – this helps make the sauce thick and velvety.
  • Seasonings – ground ginger, garlic powder, black pepper and brown sugar
  • Red pepper flakes – This is optional if you like a spicy dish.
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Step by Step Directions

Step 1 – In a small bowl, add the water and beef bouillon cubes. Microwave until hot, about 30 seconds.

Step 2 – Dissolve the beef bouillon into the water, do this by squishing the cubes with the back of a spoon.

Step 3 – Add the soy sauce, Worcestershire sauce, brown sugar, seasonings, and cornstarch. (Add red pepper flakes if you want your sauce spicy).

Step 4 – Whisk these ingredients until smooth. This may not seem like a lot of sauce, but the beef, onion, and peppers will create more sauce while cooking.

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Step 5 – Add the sauce mixture to the slow cooker.

Step 6 – Add the beef strips on top of the sauce.

Step 7 – Next, add the onions.

Step 8 – Then add the bell pepper strips.

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How to serve and store Pepper Steak:

Serving ideas

So many different ways to serve this pepper steak over. Choose what your family enjoys most.

  • White rice
  • Brown rice
  • Spaghetti noodles
  • Steamed veggies
  • Quinoa

Storage tips

  • To store pepper steak, add to tupperware and refrigerate for up to 3 days.
  • To freeze, add to freezer ziplocks bags and squeeze out any exesss air. Freeze for up to 3 months.
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Recipe FAQs

Can I make pepper steak as a freezer meal (before cooking)?

Yes, add the raw beef, onion, and peppers to a freezer ziplock bag. Mix up the sauce mixture, though let it cool before adding to the bag. Freeze for up to 3 months. Thaw in the fridge when ready to use, then add contents to the slow cooker and cook.

Can I add mushrooms to pepper steak?

You can add 1 cup of sliced mushrooms to pepper steak. Though the sauce may be a little watery due to how much moisture mushrooms have.

Can I use beef broth instead of bouillon?

You can if you are in a pinch. Though I use bouillon cubes and a small amount of water, so the sauce is potent. The meat and vegetables will let off their own moisture and dilute the concentrated sauce.

Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (7)

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Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (8)

Slow Cooker Pepper Steak

4.96 from 170 votes

Slow Cooker Pepper Steak has tender steak, bell peppers, onions in a Chinese inspired sauce.

Print Pin Rate

Course: Main Course

Cuisine: American

Prep Time: 15 minutes minutes

Cook Time: 5 hours hours

Total Time: 5 hours hours 15 minutes minutes

Servings: 6

Calories: 421kcal

Author: Sarah Olson

Ingredients:

  • 2 lbs. beef strips Look for beef cut into strips already or buy top sirloin and cut into 1/2 inch strips (round steak works well too).
  • 1 green bell pepper sliced thick
  • 1 red bell pepper sliced thick
  • 1 white onion sliced

For the sauce:

  • 1/2 cup water
  • 2 beef bouillon cubes
  • 3 Tbsp. soy sauce
  • 1 tsp. Worcestershire sauce
  • 1/4 tsp. ground ginger
  • 1/4 tsp. garlic powder
  • 1/2 tsp. black pepper
  • 2 tsp. brown sugar honey or white sugar work too
  • 1 Tbsp. cornstarch
  • 1/4 tsp. red pepper flakes (optional)

US CustomaryMetric

Instructions:

  • In a small microwavable bowl add the water and the beef bouillon cubes. Place in the microwave for 30 seconds, mix until dissolved. I use the back of a spoon or the tip of a whisk to break up the bouillon cubes. (If you don't have a microwave, boil your water on the stove-top).

  • Add the soy sauce, Worchestershire sauce, ginger, garlic powder, pepper, brown sugar and cornstarch to the bowl with the water and bouillon. Whisk until smooth. (Add the red pepper flakes if you desire). Pour this mixture into the slow cooker.

  • Add the beef, bell peppers and onions onto the sauce in the slow cooker.

  • Cover and cook on LOW for 5 hours.

How to Video:

Sarah’s Notes:

1 cup of sliced mushrooms can be added to this recipe. Though the sauce will be slightly thinner due to how much moisture mushrooms contain.

Cut the onion and bell pepper into thick slices so they will stay intact during the long cooking time it takes to get the beef tender.

Serve over white or brown rice, spaghetti noodles or quinoa. (Not calculated in the nutrition)

Refrigerate leftovers for up the 3 days or freeze for up to 3 months.

Can I use beef broth instead of bouillon cubes?

You can if you are in a pinch. Though I use bouillon cubes and a little amount of water so the sauce is potent. The meat and vegetables will let off their own moisture and dilute the concentrated sauce.

To make into a freezer dump meal:

Add the raw beef, onion and peppers to a freezer ziplock bag. Mix up sauce mixture, though let it cool before adding to the bag. Freeze for up to 3 months. Thaw in fridge when ready to use, then add contents to the slow cooker and cook according to recipe directions.

Nutrition Information:

Calories: 421kcal | Carbohydrates: 8g | Protein: 28g | Fat: 30g | Saturated Fat: 12g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 13g | Trans Fat: 2g | Cholesterol: 107mg | Sodium: 939mg | Potassium: 552mg | Fiber: 1g | Sugar: 4g | Vitamin A: 721IU | Vitamin C: 43mg | Calcium: 41mg | Iron: 3mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

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Other great recipes like this one:

  • Slow Cooker Barbecue Chicken with Bell Peppers and Onions
  • Slow Cooker Sweet and Sour Ribs
  • Slow Cooker Sweet Chili Chicken
  • Slow Cooker Beef Tips
  • Slow Cooker Hawaiian Chicken
  • Slow Cooker Chicken Adobo
  • Slow Cooker Beef Chow Mein
  • Slow Cooker Ropa Vieja

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Slow Cooker Pepper Steak with Onion Recipe - The Magical Slow Cooker (2024)

FAQs

How much liquid do you put in a slow cooker for steak? ›

Do you add water when cooking meat in a slow cooker? If your slow cooker is 3/4 full, no extra liquid is required. However, if you're cooking a smaller amount of food, add 1-2cm of liquid in the bottom of the slow cooker bowl to ensure there's enough liquid for cooking.

What is the secret to slow cooking meat? ›

Avoid overcrowding: For the best results, fill a slow cooker between one-half and two-thirds full. Go ahead and cook big roasts and whole chickens; just make sure you use a large crock and that the lid fits snugly on top. Trim fat: For silky sauces and gravies, take a minute or two and cut the excess fat from the meat.

Should meat be completely covered in liquid in slow cooker? ›

Water or liquid is necessary to create steam. When cooking meat or poultry, the water or liquid level should cover the ingredients to ensure effective heat transfer throughout the crock. Some manufacturers of slow cookers recommend adding liquid to fill the stoneware 1/2 to 3/4 full.

What liquid is best for a slow cooker? ›

To ensure the dinner cooks correctly and doesn't get soggy, decrease the amount of liquids you add. Usually only ½ to 1 cup of liquid does the trick. And, for extra flavorful results, try using liquid like broth, wine, or juice, instead of just plain water.

Why is my pepper steak tough? ›

Many butchers cut their pepper steak from different parts of the steer. Depending on where the pepper steak is cut from, it can be very tender or it can be very tough. Many people assume that it is the way they are cooking it, but it has to do with the quality of the meat and where it is cut from.

What is the best cut of meat to use for pepper steak? ›

Flank steak is our cut of choice for pepper steak—it's marbled with fat, full of beefy flavor, and easy to cut into thin, tender slices. That being said, flank isn't your only option. Skirt steak will give you a very similar result, or if you're looking for a cheaper choice, sirloin is another great option.

What ethnicity is pepper steak? ›

Pepper steak (Chinese: 青椒牛肉; pinyin: qīngjiāoniúròu) is a stir-fried Chinese dish consisting of sliced beef steak (often flank, sirloin, or round) cooked with sliced bell peppers, bamboo shoots and other seasonings such as soy sauce and ginger, and usually thickened with cornstarch.

What tenderizes meat in a slow cooker? ›

So how does slow cooking tenderize? Broth, water, or juices are always added along with the meat. The moist heat they provide softens the connective tissue that binds the muscle fibers in the meat, helping it to fall apart more easily.

Is it better to slow cook meat on low or high? ›

Foods take different times to cook depending upon the setting used. Certainly, foods will cook faster on high than on low. However, for all-day cooking or for less-tender cuts, you may want to use the low setting.

Does meat get more tender the longer you slow cook it? ›

Collagen makes meat tough when cooked quickly, but when slow-cooked, it breaks down into gelatin, giving you that juicy, tender mouthfeel. Fattier — and cheaper — cuts of beef can also be good for slow cooking, because the fat helps to ensure the beef won't dry out while adding extra flavour.

Can you overcook steak in a slow cooker? ›

The low setting is important so you don't overcook it, potentially leaving you with a dry or tough meal. If you're wondering how long your meat will take to cook in a crock pot, we recommend consulting Crockpot's cook time guide for guidance.

Do you have to brown meat before putting it in a slow cooker? ›

Ground meat should always be browned in a skillet and drained before adding it to the slow cooker with the other ingredients. This process prevents it from clumping together as it cooks and cuts down on the amount of grease in the final dish.

How much liquid should go in a slow cooker? ›

Reduce liquid when using a slow cooker

It should just cover the meat and vegetables. Don't overfill your slow cooker, or it may start leaking out the top, and the food won't cook so well. Half to two-thirds full is ideal – certainly no more than three-quarters.

How much liquid do you need for slow cooked beef? ›

Add Just Enough Liquid

This doesn't mean the meat should be submerged; a cup or two of liquid will be enough, since the cooker is covered and liquids stay trapped inside. If you want the dish to be saucy, or you're making a beef stew, add enough liquid to come about 1/3 of the way up on the meats in the slow cooker.

How much water is needed for a steak? ›

In the US to produce one pound (1 lb, 0.4kg) of steak requires, on average, 1,799 gallons of water – for pork it is 576 gallons of water and for a pound of chicken it is 468 gallons of water.

How long does steak take in a slow cooker? ›

How long does steak take to cook in a slow cooker? Cooking steak in a crock pot can take anywhere from two to six hours. The length of time depends on the steak type, steak thickness, how you like your steak, and the temperature on which you set your slow cooker.

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