Slow Cooked Mongolian Beef

Written by Sassy Girl Kitchen. Posted in Beef, Easy, Main Dish

mongolian beef Slow Cooked Mongolian Beef

This beef recipe is so delicious that people will ask for it again once they’ve had it.  My family requests this main dish for Birthday dinners.  It make me happy since it is so simple to make.I can take you through the step and then there is a step by step recipe below.

I start with a flank steak. I don’t worry too much about marbling on the steak because that only adds flavor.

I cut the steak into strips.

beef strips Slow Cooked Mongolian Beef


Once the steak is cut, it’s time to coat the strips with the cornstarch.  I don’t like mess so I add the beef strips to a large zip lock baggie, then add the cornstarch and shake until the beef strips are evenly coated.  Easy to do and easy to clean up!

I then coat the bottom of my dutch oven with the olive oil.

I place the coated beef strips in my dutch oven even on the bottom in one layer.

Next I mix the remain ingredients in a large bowl and then pour that mixture over the beef.

It will look like this.  Beef covered with juice and carrots.

beef carrots Slow Cooked Mongolian Beef


That’s it.  Then you put it in the oven at 280 degrees for 2 hours. See recipe if using a crock pot.

It is so easy and delicious.  You have to try it!  I promise you will love it.

Slow Cooked Mongolian Beef
Prep Time
Cook Time
Total Time
This is a slow cooked Mongolian Beef recipe. It’s a very simple yet very tasty main dish. It should be served with white steamed rice or noodles. This is a crowd pleaser.
Recipe type: Main Course
Cuisine: Asian
Serves: 4
  • 1½ pounds beef flank steak, cut into stir-fry sized strips
  • 2 tablespoons olive oil
  • ½ teaspoon minced ginger
  • 2 cloves garlic, minced
  • ¾ cup soy sauce
  • ¾ cup water
  • ¾ cup brown sugar
  • ¼ cup cornstarch
  • ½ cup shredded carrots
  • 3 medium green onions, chopped
  1. Coat a slow cooker or dutch oven with olive oil.
  2. Coat each piece of steak in cornstarch and place in crock pot or dutch oven.
  3. Combine remaining ingredients in a bowl and pour over beef.
  4. Cook in crockpot on high for 2-3 hours or low for 4-5 hours.
  5. If using a dutch oven, place in oven covered at 280 degrees for 2 hours.
  6. Serve over rice, topped with additional sliced green onions.
Tip: to coat the beef with the cornstarch. Place strips of beef in large zip lock baggie. Add cornstarch to bag. Zip and shake. The beef will be coated evenly with little mess.


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Comments (2)

  • Kelly sedman


    This looks amazing! Added the ingredients to my shopping list. Going to make it tomorrow! Thank you for sharing !


  • Donna W


    I usually shy away from (brown) sugar. Is there a suitable substitution? Wondering if that Splenda blend would work?? I love easy and yummy so this is right up my alley. I’m not a huge carrot fan, but they do add lots of flavor!


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