Slow Cooker Mongolian Beef (Easy Dinner Recipe)

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Crockpot Mongolian Beef combines a popular dish with a hands-off cooking method. Enjoy sweet and spicy flavors for an easy weeknight meal! Forgot about ordering takeout from your local Chinese restaurant, and make this easy recipe at home for the whole family to enjoy! 

A plate of food with rice meat and vegetables, with Beef


When you’re craving something comforting with bold, delicious flavors, nothing compares to Chinese takeout. 

Not only can you create a feast, but there always seems to be plenty for leftovers too.

However, those entrees can quickly add up. Learn to create your favorites at home, like this Mongolian Beef slow cooker recipe — it’s easier than you think, and your wallet with thank you!

ingredients to make mongolian beef in the slow cooker

Crockpot Mongolian Beef

Tender strips of meat coated in a sticky glaze with crunchy strips of carrot make for the most incredible meal. 

Add a sprinkle of sesame seeds and sliced green onion, and no one will guess it isn’t takeout!

The best part about this slow cooker Mongolian beef recipe is that there’s very little prep!

No searing or simmering is required in advance — just measure out the ingredients, coat the meat in cornstarch, and shred a carrot or two. 

Toss it all in together and let your crock pot do the rest!

It’s just as easy to throw together some pork fried rice or crispy chicken spring rolls right in your own kitchen. 

If you are looking for a different flavor, we also have a ginger beef stir fry that is out of this world!

Or, make more of your favorite takeout dishes at home with my collection of copycat recipes.

whisking sauce for mongolian beef crock pot recipe

Ingredients Needed For Slow Cooker Mongolian Beef

  • Flank Steak – Skirt or hangar steak are good substitutes if this isn’t available. Make slicing easier by freezing the meat for 20 to 30 minutes first.
  • Cornstarch – This is used as a coating for meat in many Asian recipes, especially stir fry. 

    It prevents the outer layer from becoming tough, resulting in tender, velvety bites of meat.
  • Sauce – Create a sweet and spicy blend with vegetable oil, minced garlic, fresh ginger, soy sauce, brown sugar, and Sriracha. 

    You could also substitute red pepper flakes or cayenne for the Sriracha, or reduce the amount to make it less spicy.
  • Carrots – These are optional, but they add a great texture to crock pot Mongolian beef! 

    Look for pre-shredded carrots in the produce section of your store or grate a few by hand.
pouring sauce over beef slices in crockpot

Serving Suggestions

With your Mongolian beef in the slow cooker, you’ll have plenty of time to prepare a few sides!

Serve crock pot Mongolian beef over white or brown rice with some steamed broccoli or crispy cauliflower for a simple meal!

It would also be delicious with Asian noodles to soak up all of that delicious sauce.

Kitchen Tools You Will Need

  • Slow Cooker – Great for soups, roasts, shredded chicken, and more! 

    I love it in the cooler months, but it’s also great in the summer when you don’t want to heat up the whole house with the oven.
  • Use a Box Grater or grater attachment on your Food Processor to shred whole, peeled carrots.
  • Sharp Knife – A must in any kitchen, this will allow you to create perfectly thin slices of steak for making Mongolian beef in the crock pot.
overhead of mongolian beef in crock pot

Mongolian Beef Crock Pot FAQ

How do you slice flank steak against the grain? 

Notice the lines that run parallel through the beef similar to the grain on a piece of wood. Slice across those lines, cutting the fibers into shorter pieces and ensuring perfectly tender bites.

It’s also important to keep your slices thin, especially when making crockpot Mongolian beef. This allows each piece to really soak up the flavor while cooking in the sauce.

Can you put raw steak in a slow cooker? 

Yes! As long as the meat is fresh or thawed, not frozen solid, it will reach a safe temperature in plenty of time.

With recipes like this slow cooker Mongolian beef, the extra-thin slices cook through quickly. Much of the cooking time is spent soaking up those incredible flavors.

What spices are used in Mongolian beef? 

Typically, the sauce for this dish is made with soy sauce, brown sugar, garlic, and ginger. Spicy versions will include red chili peppers or red pepper flakes.

My crockpot Mongolian beef recipe includes all the usual ingredients, plus Sriracha for heat and beef broth to help cook the meat. A little sesame oil really rounds out the flavor of the dish.

What toppings can I add to this Chinese-American dish? 

I’m all about sliced green onions or a sprinkle of sesame seed. With a little effort, you can literally top this cut of beef with just about anything that you want. This is what makes this simple slow cooker recipe unique and always gets rave reviews. 

You can add a savory sauce for busy weeknights as a great addition that is quick and easy. 

I also love making a delicious meal with cauliflower rice and sliced beef when I need a quick win for dinner time. 

How do I store leftovers of this easy slow cooker Mongolian beef recipe?

You’ll love the amazing flavor even more the next day! Let the remaining ingredients cool to room temperature, and then store the leftovers in an airtight container in the fridge. Even picky eaters won’t mind eating this great meal again. 

You can use in lettuce wraps, on top of rice for a complete meal, or even use it as a side dish if there isn’t a lot leftover! 

tongs in crock pot of mongolian beef with green onions

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plates of mongolian beef over white rice

A plate of food with rice meat and vegetables, with Beef

Slow Cooker Mongolian Beef (Easy Dinner Recipe)

Donna Elick
Crockpot Mongolian beef combines a popular dish with a hands-off cooking method. Enjoy sweet and spicy flavors for an easy weeknight meal!
5 stars from 1 review
Tried this recipe?Please comment and review!
Prep Time 10 minutes
Cook Time 3 hours
Total Time 3 hours 15 minutes
Course Main
Cuisine Asian
Method Slow Cooker
Servings 6


  • 1 1/2 pounds flank steak, sliced into thin strips against the grain
  • 1/4 cup cornstarch
  • 1 tablespoon sesame oil
  • 2 teaspoons minced garlic or garlic paste
  • 1 tablespoons ginger paste
  • 1 teaspoon Sriracha
  • 1/4 cup low-sodium soy sauce
  • 1/2 cup packed light brown sugar
  • 1/2 cup beef broth
  • 2-3 green onions, sliced diagonally


  • Slice flank steak against the grain into thin slices. (If you prefer thicker slices, they will work in the slow cooker, as the slow and low heat will still make them nice and tender.)
  • Place the steak slices in a bowl and toss with cornstarch to coat most of the pieces.
  • Spread steak pieces evenly across the bottom of a slow cooker.
  • Whisk together sesame oil, garlic, ginger, Sriracha, soy sauce, brown sugar, and beef broth until combined. Pour sauce over the steak and stir gently.
  • Cover with a lid and cook on HIGH for 2-3 hours or LOW for 5-6 hours.
  • The dish is done cooking when the sauce starts to caramelize around the edges of the slow cooker. The meat should be tender. If you overcook, the meat becomes SO tender that it starts to break apart into smaller pieces. Exact cook time will vary depending on your slow cooker and the thickness of the sliced meat.
  • Garnish with green onions and/or toasted sesame seeds.

Donna’s Notes

  1. Store in an airtight container in the refrigerator for 3-4 days or freeze for up to 1 month.
  2. Flank steak works well for this recipe – you can also use a skirt steak.
  3. I like using ginger and garlic pastes in sauces like this one – they dissolve and distribute evenly and easily into the sauce. You can substitute fresh ginger and/or fresh minced garlic if you prefer.
  4. This is a very mild Mongolian beef – the Sriracha adds just a small amount of spice. Add more Sriracha or add red pepper flakes and/or chile peppers for additional spice.
  5. Typically, we would sear the cornstarch-coated steak, but this is not necessary for the slow cooker. This makes prep really fast. Simply toss the meat in cornstarch – this keeps the pieces separated from one another and helps to thicken the sauce as it cooks in the slow cooker. Then put the raw meat straight into the slow cooker.


Serving: 1 | Calories: 278cal | Carbohydrates: 24g | Protein: 26g | Fat: 8g | Saturated Fat: 3g | Cholesterol: 68mg | Sodium: 542mg | Sugar: 18g | Fiber: 1g | Calcium: 48mg | Iron: 2mg

All nutritional information is based on third party calculations and is only an estimate. Each recipe’s nutritional value will vary depending on the ingredients used, measuring methods, and portion sizes.

Tried this recipe?Let us know how it was!

Originally published February 2018, updated and republished March 2024

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  1. Can I use broccoli along with the carrots? At what point do I add the broccoli & carrots? Is it best to use fresh or frozen broccoli?

    1. Hi Marcie!
      It sure can! Green onions can become somewhat soggy after thawing, but other than that I believe it’d be fine as a freezer meal!
      TSRI Team Member,

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