Crock Pot Mongolian Beef is a delicious, easy meal you’ll love! Strips of beef are cooked in Asian sauce until tender, then served on rice!Crock Pot Mongolian Beef is a delicious, easy meal you'll love! Strips of beef are cooked in Asian sauce until tender, then served on rice!

Looking for a delicious, hearty dish you can whip up in a few minutes and then throw in the slow cooker? Try this yummy recipe for crock pot Mongolian beef! It’s SIMPLE to prepare, and then your handy dandy slow cooker does the rest of the work for you! If you don’t have a lot of time to prepare dinner (busy days, right?), this dish is a perfect solution.

Strips of beef (I use flank steak) are cooked low and slow in a delicious Asian-inspired, slightly sweet sauce. The beef strips, once cooked, are coated in a thick, lip-smackin’ sauce and are incredibly tender. We enjoy the beef and sauce served on rice, with a veggie on the side. It’s a delicious and hearty meal you’re going to love! Here’s how simple it is to make:

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Prepare The Meat

For this recipe you will need 1¾ pounds of flank steak. It is usually packaged as a long, flat strip of meat. You will need to slice the beef into thin (about ½”) strips. TIP: If you freeze the flank steak for about 15 minutes, it will be much easier to slice.

Put the strips of beef into a large re-sealable plastic bag. Add cornstarch to the bag, and shake well, to cover the beef strips with cornstarch. The cornstarch will help to thicken the sauce for this recipe. Set the bag aside once the meat is fairly well-coated.

Flank steak is sliced into thin strips on a cutting mat.Strips of flank steak are coated with cornstarch in a large plastic bag.

Make The Sauce

Okay… now it’s time to make the sauce. It’s EASY! The sauce ingredients can be added directly to your crock pot. To make the sauce you will need water, low-sodium soy sauce, brown sugar, olive oil, minced garlic, and grated carrots.

Add the sauce ingredients to the slow cooker. Stir well, to fully dissolve the brown sugar and combine the ingredients.

All ingredients for the Asian-inspired sauce are combined in a slow cooker.Sauce for the Mongolian beef is stirred to combine, before adding meat.

Ready, Set… Cook!

Add the prepared beef strips to the slow cooker and stir, to combine with the sauce. Now the crock pot Mongolian beef is ready to cook. See how easy that was?

There are two choices for how long you want to cook this dish. You can either cook it on HIGH for 2-3 hours OR you can cook it on LOW for 4-5 hours. I usually cook it on a low setting, because then I can simply not think about it, and go about my business. Towards the end of the cooking time I make a pot of rice (and a veggie) to serve with this dish.

Strips of beef are added to the crock pot with sauce and cooked several hours until tender.

When done, the sauce will have thickened, and the beef strips will be incredibly tender. This means the crock pot Mongolian beef is ready for serving. Whoo Hoo!

When done cooking, Crock Pot Mongolian Beef will be tender and coated in a thick sauce.

Serving Crock Pot Mongolian Beef

To serve this meal, I lay down a base of steamed rice on each plate, and spoon the crock pot Mongolian beef (and sauce) on top. At this point, this meal is ready to eat, but if you want to “fancy it up” just a bit, why not make it “pop” a bit more? We eat with our eyes first, so I enjoy making it LOOK GOOD, too!

I like to garnish each serving with a few grated carrots and chopped green onions. It gives this dish color (and even more flavor!). When served with a nice green veggie (we enjoy steamed broccoli), this becomes a very pleasing to look at meal! Just wait until you taste it, though. It is DELICIOUS!

Crock pot Mongolian beef is served on rice, with a garnish of chopped green onions.Steamed white rice and broccoli are served with the crock pot Mongolian beef.

Thanks for stopping by today. I hope you have the opportunity to try this meal, and trust you will enjoy it as much as we do. Have a great day, and please come back soon for more family-friendly recipes. Take care!

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Recipe adapted from Alyssa at:


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Crock Pot Mongolian Beef
Prep Time
10 mins
Cook Time
4 hrs
Total Time
4 hrs 10 mins

Crock Pot Mongolian Beef is a delicious, easy meal you'll love! Strips of beef are cooked in Asian sauce until tender, then served on rice!

Category: Dinner, Main Dish
Cuisine: Asian
Keyword: crockpot Mongolian beef
Servings: 6
Calories Per Serving: 369 kcal
Author: JB @ The Grateful Girl Cooks!
  • pounds flank steak
  • ¼ cup cornstarch
  • ¾ cup water
  • ½ cup low-sodium soy sauce
  • ¾ cup brown sugar dark or light
  • 2 Tablespoons olive oil
  • 1 cup grated carrots
  • 1 teaspoon minced garlic
  • chopped green onions/grated carrots, for garnish OPTIONAL, but GOOD
  1. Slice beef into strips (about ½") . TIP: If you freeze meat for 15 minutes, it's easier to slice. Put beef strips of beef in a large re-sealable plastic bag. Add cornstarch. Shake well, to coat beef strips with cornstarch. Set bag aside once meat is well-coated.

  2. Add water, soy sauce, brown sugar, oil, carrots and garlic to crock pot. Stir well, to dissolve brown sugar and combine ingredients.

  3. Add beef strips to crock pot; stir, to cover with sauce. Cook on HIGH (lid on) for 2-3 hours OR you can cook it on LOW (lid on) for 4-5 hours. When done, sauce will have thickened and meat will be very tender.

  4. Serve the beef (and sauce) on top of rice. If desired, garnish each serving with additional shredded carrots and chopped green onions. Enjoy!

Nutrition Facts
Crock Pot Mongolian Beef
Amount Per Serving (1 (1/6 of total))
Calories 369 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 3g19%
Polyunsaturated Fat 1g
Monounsaturated Fat 6g
Cholesterol 79mg26%
Sodium 803mg35%
Potassium 598mg17%
Carbohydrates 36g12%
Fiber 1g4%
Sugar 28g31%
Protein 30g60%
Vitamin A 3564IU71%
Vitamin C 2mg2%
Calcium 64mg6%
Iron 3mg17%
* Percent Daily Values are based on a 2000 calorie diet.

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Crock Pot Mongolian Beef

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