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 441 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

Hello! I’m Sara!

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Comments

  1. 5 stars
    This Mongolian Beef is amazing! I can’t believe how incredibly easy it is to prepare. The whole family looks forward to this meal. Thank you for this delicious recipe!

  2. Hi,
    If I do not have a slow cooker can I still make this following the same method just cooked on low on the stove top? I know you have a quicker stove top version however the slow cooked beef option just sounds so delicious!

    1. I think it could work but you’d need to simmer it covered on low. I haven’t tested this particular recipe on the stove top so this is just a guess!

  3. 5 stars
    Hello Sara: I made this dish last week, following the recipe as stated, and it was easy and DELICIOUS! Thank you for sharing this recipe with us! This week I will try we with chicken thighs.

  4. I enjoyed this recipe immensely! The only problems I have is that I am used to Thai Foods! There seems to be a shortage of white onions and peppers in the mix! Could you offer some inspiration into what onions and peppers I should use?

    1. You could use 1/2 cup of sliced white onion, and 3/4 cup of sliced red, orange or yellow bell peppers. Add the veggies during the last hour of the cooking time.

      1. Thank you for adding the onion and peppers to the recipe. I am not a good cook, but I am going to make your recipe. My husband loves onions and peppers cooked with his beef, so I know he will like this version of your recipe.

  5. 5 stars
    This tastes INCREDIBLE and is so easy to make. A real set and forget crowd pleaser. I cooked mine for 2 hours on high and the beef was perfectly melt in your mouth cooked. The flavour was amazing.

  6. 5 stars
    Made this exactly as the recipe states but used rump steaks and added a teaspoon of chilli. It was a huge hit! Definitely saving and making again. Thank you 🙂

  7. 5 stars
    I made this for the first time for a dinner with friends. It was a big hit and they wanted the recipe to make on their own. Only thing that I changed was the addition of 1 tsp of red pepper flakes, because we like spice. So flavorful! The few leftovers that remained were gone the next day. Served with h rice and steamed broccoli. Thank you for sharing this amazing recipe!

  8. This was delicious!! I’ve made it several times and loved it each time. I’ve added pineapple and broccoli just to change it up sometimes. It’s wonderful.

  9. Just made this I used pork had no beef it was fantastic my husband even asked me to make it again! I did add about 1 tablespoons is sweet chili sauce. Thanks

  10. This is fabulous! But mine was done at 2 1/2 hours on low. It was super thick. Added a little water and will let it go a little longer. Very easy, very tasty!!

  11. 5 stars
    Recipe was easy to put together and into the crockpot and several hours later it was ready to serve. We served it over white rice and it was yummy. My husband said I could make this any time. Will definitely make this again.