This slow cooker Mongolian beef is flank steak cooked with garlic, ginger, brown sugar and soy sauce. This crock pot recipe tastes just like a meal you would get at a Chinese restaurant!

Make your own take out with this easy Mongolian beef recipe. This dinner is SO simple to put together and always gets rave reviews from family and friends.

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Slow cooker mongolian beef with thinly sliced flank steak cooked with soy sauce, brown sugar, garlic and ginger.

Making meals like this slow cooker Mongolian beef, in the crock pot is one of my favorite things to do. Not only does it allow you to have a nice meal when you’re finished with your day but, it feels like you’re getting to skip all the cooking. It kind of feel like cheating because it makes dinner time that much simpler!

HOW DO YOU MAKE SLOW COOKER MONGOLIAN BEEF?

This Mongolian beef has the rich flavors of ginger, garlic, and brown sugar. It’s cooked slowly in the crock pot so every flavor has a chance to really sink in. When it’s almost ready to be served, the green onions get added to the pot and stirred in. The family is sure to love this one.

Flank steak in a slow cooker.

I highly suggest slightly freezing the flank steak before slicing it. It makes it much easier to slice if you do so. I prefer using the low sodium soy sauce because it keeps the dish a little healthier and you won’t have to worry about the finished dish being overly salty.

Sliced flank steak topped with a garlic, ginger and soy sauce.

This crock pot Mongolian beef pairs well with steamed rice. I always serve it with a green vegetable on the side such as broccoli or asparagus. Of course, there are many other sides that would work as well, but I love the fresh counterpart of a lightly steamed veggie.

A slow cooker full of Mongolian beef in a savory sauce with green onions.

ARE THERE SUBSTITUTES FOR FLANK STEAK?

Yes, there are a few other options that will work for this crock pot Mongolian beef. Flank steak is my favorite option but you can also use skirt steak or even hanger steak if you can get your hands on it. You could also use thinly sliced sirloin steak if desired.

WHY IS IT CALLED MONGOLIAN BEEF?

Mongolian beef was created in Taiwan where dishes like this slow cooker Mongolian beef were popular. That area was where the first Mongolian restaurants started opening up. They made the Mongolian style of food popular which is why the name is carried with dishes like this one.

A bowl of rice topped with slow cooker mongolian beef.

Looking for Mongolian beef but don’t have the time to wait for it to cook in a crock pot? Try my stove top Mongolian beef!

One thing I’ve learned over the years is that it doesn’t take a ton of work to have a delicious meal. I love this crock pot Mongolian beef because it’s easy, but comes out totally delicious and satisfying. Even my kids love this one!

MORE ASIAN RECIPES YOU’LL LOVE

4.99 from 461 votes

Slow Cooker Mongolian Beef

AuthorSara Welch
Slow cooker mongolian beef with thinly sliced flank steak cooked with soy sauce, brown sugar, garlic and ginger.
This slow cooker Mongolian beef is flank steak cooked with garlic, ginger, brown sugar and soy sauce. This crock pot recipe tastes just like a meal you would get at a Chinese restaurant!
Time
Prep Time10 minutes
Cook Time3 hours
Total Time3 hours 10 minutes
Course Main
Cuisine Asian
Serves 5

Ingredients 

  • 1 1/2 pounds flank steak thinly sliced against the grain
  • 1/4 cup cornstarch
  • 1 tablespoon toasted sesame oil
  • 1 teaspoon minced garlic
  • 1 teaspoon minced ginger
  • 1/2 cup low sodium soy sauce
  • 1/3 cup brown sugar
  • 1/2 cup water
  • 1/2 cup green onions cut into 1/2 inch pieces

Instructions 

  • Place the flank steak in a bowl with the cornstarch and toss to coat evenly.
  • Add the flank steak to the slow cooker.
  • Place the sesame oil, garlic, ginger, soy sauce, brown sugar and water in the slow cooker. Stir to coat the meat in the sauce.
  • Cover and cook on HIGH for 2-3 hours or LOW for 4-5 hours. 
  • Stir in the green onions, then serve.

Nutrition

Calories: 308kcal | Carbohydrates: 23g | Protein: 30g | Fat: 9g | Saturated Fat: 3g | Cholesterol: 81mg | Sodium: 629mg | Potassium: 557mg | Sugar: 14g | Vitamin A: 100IU | Vitamin C: 1.9mg | Calcium: 52mg | Iron: 2.9mg

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Comments

  1. 5 stars
    I added three tablespoons of real maple syrup and 1/4 cup of orange juice to add a sweeter and slightly orangey flavor. Otherwise I followed the recipe exactly, cooking on high in the slow cooker for two hours. It was a hit! The beef was tender and the sauce was delicious. Thank you for this amazing recipe!

  2. 5 stars
    Thank you to those who actually tried the recipe. Hate the ‘boy this looks good’…to those that have actually made this, a huge Thank You = I was sold AND I made it. No disappointment here, it was perfect. I added broccoli florets half way through, was fabulous! Thanks for a great recipe!

    1. That will work but it will need to cook for a lot longer as it’s not as tender as flank steak. Try high for 4-5 hours or low for 6-8 hours.

  3. 5 stars
    First time I tried this I did not have fresh garlic or ginger so used powdered…it was fabulous! Tonight I have the real deal so can’t wait to see how it tastes. So simple, yet so delicious!

      1. 5 stars
        So I’m in the middle of making this ! Everything is going great but I cut my flank steak into chunks instead of slices,do you think its gonna turn out ok? It’s too late to turn back now!

  4. This looks fabulous and easy!!! What spice/spices would I add to make it more spicey hot, like Thai heat but not overboard! Thanks for the help, look forward to trying this!!

      1. Harissa powder will add another layer of flavour as well as the heat that you’re looking for.

  5. Oh my goodness, this beef looks so flavorful. I am bookmarking this because I love slow cooker meals and this one is right up our alley. My whole family would love it. Thank you!

  6. 5 stars
    I’m a fan of the slow cooker as I love coming home from work to a cooked meal! Chinese food in a slow cooker sounds wonderful!

  7. 5 stars
    Looks like a delish and easy meal, I love slow-cooker recipes! I will be trying this for sure with back to school around the corner.

  8. 5 stars
    I can’t believe how easy this recipe looks! Like I could actually pull this off and end up with a great meal! I will definitely be saving this because my slow cooker has been collecting dust for too long!

  9. This looks and sounds like a delicious recipe! I would love to try making this for my family for dinner. Thanks for sharing.

  10. We are heading back to school soon, well the kids are! That means back to packed schedules and needing my slow cooker more than ever. This recipe sounds AWESOME!

  11. 5 stars
    Looks like a delish and easy meal, I love slow-cooker recipes! I will be trying this for sure with back to school around the corner.

  12. This looks so good! I love anything that is cooked in my slow cooker. I’ll definitely have to try this recipe out. Thanks for sharing!

  13. 5 stars
    Wow, this suit us so well as we usually take rice. Mongolian beef would goes very well with white rice. I am going to try this out for my family in this weekend. Thanks for sharing me what to cook as I have always run out of recipe.

  14. 5 stars
    I hear the name and it scares me, but then I see the recipe and realize I like all of that and have cooked with all of those products. I really wanna try this now!