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!
Slow Cooker Mongolian Beef - The Recipe Critic (2)

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

4.69 from 63 votes

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.

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

Welcome to my kitchen! I am Alyssa Rivers and the food blogger behind The Recipe Critic. The blog launched in 2012 as a place to share my passion for cooking. I love trying new things and testing them out with my family. Each recipe is tried and true, family-tested and approved.

Read More About Me

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Slow Cooker Mongolian Beef - The Recipe Critic (2024)

FAQs

Why is Mongolian beef so tender? ›

Coating beef in cornstarch is important because it helps to tenderize the beef. It also helps to thicken the sauce, allowing it to fully coat the beef. Flank steak (sliced against the grain) is most commonly used to make Mongolian beef, although any quick cooking beef works great.

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

Chuck steak: Chuck steak is a budget-friendly cut of beef that's often used for slow cooking, but it can also be used as a substitute for flank steak in some recipes. It's a bit tougher than flank steak, so it's best to marinate it before cooking to help tenderize it.

What makes Mongolian beef Mongolian? ›

Despite its name, the dish has nothing to do with Mongolian cuisine. Mongolian beef is among the meat dishes developed in Taiwan where Mongolian barbecue restaurants first appeared. Thus, none of the ingredients or the preparation methods are drawn from traditional Mongolian cuisine but rather from Chinese cuisine.

Why brown ground beef before slow cooker? ›

"Browning, or caramelizing, meat before putting it into a slow cooker isn't 100 percent necessary, but it is well worth the effort for the most flavorful and full-bodied end result," he says. "The caramelized surface of the meat will lend rich flavor and color to the finished dish."

How do Chinese cooks make 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 the secret ingredient to tenderize meat? ›

Baking Soda is an Easy Meat Tenderizer

Baking soda helps prevent ground beef from drying out, allowing those burger patties to keep their moisture and brown quicker for the most flavorful cookout. Not to mention, baking soda is the ideal ingredient for getting the most out of your Thanksgiving bird.

How do you make meat tender in a slow cooker? ›

Cook Low and Slow

This long, slow braise breaks down the connective tissue and fat, creating deliciously soft and juicy meat. Each slow cooker meal's cooking time differs depending on the meat and its weight. The low setting is important so you don't overcook it, potentially leaving you with a dry or tough meal.

What is a good substitute for flank steak in Mongolian beef? ›

Other cuts that work with high-heat cooking can also be used to make Mongolian beef. Sirloin is a frequent substitute, as are hanger and skirt steak. Avoid any stewing meats, however.

What is a good side dish with Mongolian beef? ›

Rice is one of those classic easy side dishes that go perfectly with Mongolian Beef. When you order this dish in a restaurant or for take-out, it's almost always paired with white steamed rice. I like to mix things up a bit and serve wild rice instead of white rice. It's healthier for you and gives a nice texture.

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

Hunan beef also packs in some heat in the form of chili peppers, but it's not a numbing heat whatsoever and I like to think of it as the milder cousin to Szeuchuan beef. What's the difference between Hunan beef vs Mongolian beef? Another favorite beef recipe of mine, Mongolian beef is much sweeter than Hunan beef.

Does Mongolian beef contain oyster sauce? ›

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!

Can I put raw beef straight into a slow cooker? ›

Yes, you most certainly can cook raw meat in the slow cooker! You put it in “cold”, with whatever liquid your recipe calls for, turn it on either “low” or “high” depending on your recipe (I usually start it on “high” for a couple hours, then turn it to “low”), and in 6–7–8 hours, it's now COOKED meat!

Can you overcook ground beef in a slow cooker? ›

Stick to the cook time indicated on your recipe

While slow cooker recipes are designed to cook for extended periods of time, they can still become overcooked if left on the wrong setting for too long. In general, it's best to stick to the indicated cook time on the recipe you're following.

Can you put uncooked ground beef in a crockpot? ›

Can You Put Raw Beef in a Slow Cooker? Yes, you can totally cook raw beef in a slow cooker. Many slow-cooker chili recipes have a step for browning the beef before it goes into the Crock-Pot. While this step isn't necessary, caramelizing the meat creates richer, bolder flavors.

What is the most tender beef to eat? ›

From the heart of the tenderloin section, the tenderloin steak is one of the most prized pieces of meat. The most tender of all cuts of beef, tenderloin steaks are lean and known for their delicate, butter-like texture and thick cut.

Why Mongolian meat is good? ›

Therefore, Mongolia pastureland grass-feed animals' meat is considered organic because it contains low heavy metals compared to the other farm-breed animal meat. Instead, Mongolian meat contains a higher amount of essentials metals such as iron and zinc. Moreover, it is rich in protein.

What's the difference between beef and Mongolian beef? ›

Mongolian Beef can be described as having a savory soy-based sauce with scallions as its main aromatic. Szechuan Beef has a similar soy sauce-based profile but with the addition of a spicy element, such as fresh or dried chilis and/or Sichuan peppercorns for a numbing sensation.

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