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.
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.
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.
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.
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.
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
- Pepper Steak Stir Fry
- Slow Cooker Orange Chicken
- Asian Cucumber Salad
- Cream Cheese Wontons
- Firecracker Chicken
Slow Cooker Mongolian Beef

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.
This Mongolian Beef is amazing! I canโt believe how incredibly easy it is to prepare. The whole family looks forward to this meal. Thank you for this delicious recipe!
What is a good oil substitute for sesame oil, we have a sesame allergy in the family?
You could just omit it as there’s not a great substitute!
A friendโs daughter is also allergic to sesame so she uses perilla oil. It can be found in the Asian grocery stores or Amazon. It may also be sold at some other places as well. But it is kind of expensive. I actually really like the taste of perilla oil as it has a much deeper flavor than sesame. Hope this helps!
So tasty and easy
Can you use thinly sliced london broil for this recipe?
Yes that’s fine!
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!
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!
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.
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?
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.
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.
So delicious! Simple to make and very flavorful. I’ll be making it again!
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.
Mongolian beef recipe is easy and my family loves it.โค๏ธโค๏ธโค๏ธ
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 ๐
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!
I used thin eye of round.
So easy and so tasty, also quite budget friendly! Thanks!
This was delicious!! Iโve made it several times and loved it each time. Iโve added pineapple and broccoli just to change it up sometimes. Itโs wonderful.
Can you add broccoli directly into the slow cooker with the beef?
Yes but add it during the last 45 minutes!
Yum yum yum
I am disabled. This was so easy to make and my husband loved it.
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
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!!
What can you use instead of the beef??
You could try using chicken thighs!
Can you add dried red chilies?
Yes that will work!
Quick and easy with great flavor. We served it over gluten free ramen noodles.
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.