Slow Cooker Mongolian Beef - The Recipe Critic (2024)

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Tender pieces of flank steak are slow-cooked in the tastiest sweet and savory sauce. This slow cooker Mongolian beef is melt-in-your-mouth perfection and bursting with flavor. Quick and easy to prepare and one of our favorite slow cooker meals!

If you love restaurant Mongolian Beef, this super easy make-at-home rendition will be your new favorite dinner. Serve over this easy fried rice for a complete meal. And if you really want to wow your guests, egg rolls and vegetable stir-fry on the side would be amazing!

Slow Cooker Mongolian Beef - The Recipe Critic (1)

Slow Cooker Mongolian Beef

Mongolian beef made in the slow cooker is life-changing! Slow cooking the beef ensures that it’ll be delicate and succulent. This slow cooker Mongolian beef recipe is an explosion of flavors in every bite! Garlic, soy sauce, and brown sugar come together to create a caramelized sauce that coats the tender juicy pieces of steak.

This is hands down one of the BEST dinners that I have ever made. My family couldn’t get enough of it! It’s so easy to make restaurant-worthy meals for the family at home. If you love this slow cooker Mongolian beef recipe then I can’t wait for you to try more of our favorites. Make this sweet and sour chicken, these lettuce wraps, of this incredible bang bang chicken.

Mongolian Beef Ingredients

Slow cooker Mongolian beef is SO easy to make with minimal ingredients. The ingredients are simple, but the outcome is incredible! Your dinner is prepped and ready to go in under 10 minutes!

  • Flank Steak:Sirloin can be substituted here but avoid stew meat.
  • Corn Starch: This acts as a natural tenderizer for the beef.
  • Olive Oil: Use canola oil if you’d rather.
  • Garlic: Minced or chopped will give the most flavor.
  • Soy Sauce: Either low-sodium soy sauce or coconut aminos can be used here.
  • Water: This will help make it saucy.
  • Brown Sugar:Light or dark brown sugar is both great in the sauce.
  • Carrots: Grate a carrot or instead use pre-shredded carrots.
  • Green Onions and Sesame Seeds: Optional garnish, but make a stunning topping.

How to Make Mongolian Beef in a Slow Cooker

The beef literally just melts in your mouth! You can always count on the slow cooker for tender beef. The tasty sauce clings to the cornstarch-coated steak and every bite is bursting with flavor. See the recipe card below for exact measurements.

  1. Cut and Coat: Cut the flank steak thinly and across the grain to ensure a tender bite. Place the steak in a ziplock bag with the cornstarch then shake to coat. Make sure to coat the beef evenly.
  2. Add ingredients to the Slow Cooker:Mix the oil, garlic, soy sauce, water, brown sugar, and carrots in the slow cooker.
  3. Coat the Beef: Stir the beef into the slow cooker making sure it’s well-coated
  4. Cook:Set on high for 2-3 hours or on low for 4-6 hours.
  5. Garnish and Enjoy: Garnish with chopped green onion and sesame seeds for added flavor and texture then enjoy over rice!
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Tips and Variations

Everything about this Mongolian recipe is perfect, and I know that it will become a family favorite at your house just like it did at ours! Here are some ideas and variations to make it your own! I also included instructions for making it in the instant pot when you’re short on time!

  • Slicing the Beef:When slicing the flank steak make sure to slice it against the grain. I like to slice mine about 1/4 inch thick.
  • Veggies: Roast broccoli, green beans or red bell pepper then stir in before serving. Vegetables add texture and nutrition.
  • Instant Pot:This easily converts to a quick Instant Pot recipe. Saute the steak on high until browned. Add the sauce ingredients and cook on “Manual” for 10 minutes. Lastly, quick release the pressure and enjoy!
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How to Store Leftovers

Store any leftover Mongolian beef you may have, because it’s great for heating up and enjoying later! I like to make a little extra rice as well for a quick lunch that’s super satisfying!

  • In the Refrigerator:Place leftovers in a sealed container for up to 4 days.
  • In the Freezer:Once cooled, store leftovers in an air-tight container or freezer ziplock bag for up to 4 months. Thaw in the refrigerator before rewarming.
  • To Reheat: Place leftovers in a microwave-safe bowl then heat for 1-2 minutes or until warmed through.
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More Savory Slow Cooker Recipes

Slow cooker dinners always save the day! They’re easy and SO delicious. Everyone loves coming home to a warm home-cooked dinner. Try some of our favorites this week for dinner. You’ll love them all!

Slow Cooker

Crockpot Salisbury Steak

3 hrs 20 mins

Side Dishes

Crockpot Green Beans

3 hrs 5 mins

Dinner

Slow Cooker Kalua Pulled Pork

16 hrs 5 mins

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Slow Cooker Mongolian Beef

By: Alyssa Rivers

Tender pieces of flank steak are slow cooked in the tastiest sweet and savory sauce. This slow cooker Mongolian beef is melt-in-your-mouth perfection and bursting with flavor. Quick and easy to prepare and one of our favorite slow cooker meals!

Prep Time: 10 minutes minutes

Slow Cooker: 4 hours hours

Total Time: 4 hours hours 10 minutes minutes

Servings: 6 Servings

Ingredients

Instructions

  • Cut flank steak into thin strips. In a ziplock bag add flank steak pieces and cornstarch. Shake to coat.

  • In a medium-sized bowl, add the olive oil, minced garlic, soy sauce, water, and brown sugar. Whisk to combine and add to the slow cooker.

  • Add the grated carrots and coated flank steak to the slow cooker and stir until coated in the sauce.

  • Cover and cook on high for 2-3 hours or on low for 4-5 hours.

  • Serve over rice and garnish with green onions and sesame seeds.

Video

Notes

Updated on November 08, 2023

Originally Posted on August 17, 2015

Nutrition

Calories: 348kcalCarbohydrates: 36gProtein: 28gFat: 10gSaturated Fat: 3gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gCholesterol: 68mgSodium: 1705mgPotassium: 555mgFiber: 1gSugar: 28gVitamin A: 3564IUVitamin C: 1mgCalcium: 61mgIron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dinner, Main Course

Cuisine: Asian American

Tried this recipe?Mention @alyssa_therecipecritic or tag #therecipecritic!

About Alyssa Rivers

Alyssa Rivers is the author of 'The Tried and True Cookbook', a professional food photographer and experienced recipe-developer. Having a passion for cooking, her tried and true recipes have been featured on Good Morning America, Today Food, Buzzfeed and more.

Read More About Me

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Slow Cooker Mongolian Beef - The Recipe Critic (2024)

FAQs

Why is Mongolian beef so tender? ›

That's because restaurants use baking soda or cornstarch to tenderize the meat. It's a process called velveting beef. While the beef is tender (artificially so), it's lacking true beefy flavor. I gave up ordering Mongolian Beef years ago once I figured out how to make it better at home.

What is Mongolian beef sauce made of? ›

Our recipe for Mongolian beef sauce includes oyster sauce, soy sauce, tamari soy sauce (as a replacement for dark soy sauce), chili sauce, sugar, and cooking wine. Check the ingredient list to see precise amounts. Don't forget that you can scale the recipe up and down!

What is a good substitute for flank steak in a slow cooker? ›

The best meat to use instead of flank steak is skirt steak, flat iron steak, flap (sirloin tip) steak, tri-tip steak, and hanger steak (in that order). Each has its differences, but all do well being marinated and cooked over high heat, like flank steak.

Is skirt steak good for slow cooking? ›

A thin, long and versatile cut that tends to be reserved for slow cooking, skirt steak comes from the cow's diaphragm muscles. It's lean and tough, with intense, melt-in-your-mouth flavours that emerge when cooked slowly.

How do Chinese restaurants get their beef so tender? ›

While there are several ways to velvet, a pound of meat needs about two teaspoons of cornstarch and two teaspoons of oil, says Leung. You may also include two to three tablespoons of water. For beef, add a 1/4-teaspoon of baking soda for tenderizing. Additional seasonings are optional and vary from recipe to recipe.

What is PF Chang's Mongolian sauce? ›

Deep and flavorful, our Mongolian Style BBQ Sauce can attribute its flavor profile to smoked black pepper, sweet molasses, soy sauce and garlic making this sauce versatile for marinades and as a finishing sauce.

What ethnicity is Mongolian beef? ›

Mongolian beef is a dish from Taiwan consisting of sliced beef, typically flank steak, usually made with onions. The beef is commonly paired with scallions or mixed vegetables and is often not spicy. The dish is often served over steamed rice, or in the US, over crispy fried cellophane noodles.

What is the difference between Mongolian beef and Chinese beef? ›

Szechuan beef vs Mongolian beef, what's the difference? Szechuan beef has a sweet and spicy flavor, and Mongolian beef has a mild taste. Szechuan beef hails from the Sichuan Province in southwestern China. Its main ingredients are chili peppers, garlic, and Szechuan peppercorn.

What beef is better for slow cooker? ›

For a slow cooker, the best cut is chuck roast … plenty of marbled fat and the collagen breaks down so that can easily be shredded.

Does meat get more tender the longer you cook it in a slow cooker? ›

Not only does it make the meat far juicier and more tender but it also works with all kinds of meats. No matter your preference, this cooking method works well with whole cuts of pork, beef, lamb, and even veal.

What is the underrated cut of steak that's ideal for slow cooking? ›

Under blade steak maintains its shape even when slow-cooked

But unlike most steak cuts, the under blade takes just as well to slow-cooking — this cut will maintain its integrity through the low and slow cooking process, per The Spruce Eats. Also known as a chuck flat, according to Beef.

Does skirt steak get more tender the longer you cook it? ›

The best texture comes with just a few minutes of contact on the heated surface and results in medium-rare doneness. Skirt steak is thin and lean, so going past medium-rare or medium doneness will yield an extremely dry and chewy steak. Cook it hot! Cook it fast with high heat, instead of low heat for slow cooking.

What makes beef really tender? ›

Most cuts of steak benefit from being salted up to an hour in advance of cooking, but especially tougher cuts. In addition to seasoning the steaks, salt helps break down proteins and make the meat more tender. Liberally salt the steaks up to an hour before cooking, then proceed according to your recipe.

What makes beef so tender? ›

The amino acid chains that form collagen. Weight-bearing muscles and muscles that are constantly used contain higher amounts of collagen than muscles that aren't used for support or aren't used as frequently. Cows and pigs have higher amounts of collagen in the legs, chest, and rump.

What is the most tender beef to eat? ›

Black Angus filet mignon is the most tender cut of beef used for steaks. It comes from the smaller end of the tenderloin and should be well-marbled. You can grill it or cook it in a skillet and is best served blue rare or rare. Blue rare is a style of cooking that is becoming very popular for meat lovers.

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