This Slow Cooker Mongolian Beef tastes just like the one you would find at your favorite Chinese restaurant, and needs just 10 minutes of prep time to put together. The flank steak pieces are cooked to perfection and have an amazing flavor with all the spices and sauces added in.

Why You’ll Love Mongolian Beef

  • Simple: Slow cooker meals are my absolute favorite, because they are such a great way to whip up a nice meal with very little prep time.
  • Family Favorite: You’ll almost always find me cooking my family loved meals in my Instant Pot, and I’m a big fan of my Crock Pot too.
  • Batch Cooking: This slow cooker Mongolian beef recipe in particular, is perfect for my weekday dinner time. My family loves it, and I can also store leftovers for later!
slow cooker Mongolian beef served with rice

Recipe Ingredients

You’ll need a simple set of ingredients to make this slow cooker Mongolian beef recipe.

  • Flank Steak: The star of the dish, providing hearty and tender meat.
  • Garlic: Adds a punch of umami flavor, enhancing the overall taste.
  • Fresh Ginger: Imparts an earthy aroma and flavor.
  • Scallion: Brings a touch of freshness and color to the dish.
  • Reduced Salt Soy Sauce: Provides the color and savory flavor, without over-salting.
  • Brown Sugar: Balances the savory with a hint of sweetness.
  • Cornstarch: Crucial for thickening the sauce and creating a rich texture.
  • Vegetable Oil: Used for sautéing, flexible with other oil types.
  • Sesame Oil: Adds an authentic Asian flavor note.
  • Sesame Seeds: A crunchy garnish that adds visual appeal and texture.
  • Seasonings: Simple salt and pepper bring out the flavors of the ingredients.
Slow Cooker Mongolian Beef Ingredients

How To Make Mongolian Beef

Once you have the Mongolian beef ingredients ready, here’s what you’ll need to do to make the dish.

Step One: Thinly cut the flank steak against the grain, and then dice. Put the steak in a bowl.

Step Two: Season flank steak with salt and pepper to taste, and coat with cornstarch. Mix until well combined. Mince your ginger and garlic.

Step Three: Add coated flank steak to the slow cooker, add the vegetable oil and then add the steak. Add ginger and garlic.

Step Four: Then add brown sugar, sesame oil, soy sauce and water. Stir ingredients until well combined.

Step Five: Turn the slow cooker on 2.5 hours on high or 4-5 hours on low. Then stir when done cooking.

Step Six: Slice the scallion. Garnish the Mongolian beef with scallions and sesame seeds and serve over rice.

close up of slow cooker Mongolian beef

Expert Tips For Cooking Mongolian Beef

Ready to make this slow cooker Mongolian beef? Here are some more tips and tricks you might want to note.

  • To add some more flavor to the sauce, you can also add a dash of Hoisin sauce into the slow cooker along with the flank steak.
  • I used flank steak for this recipe, but you can also try making slow cooker Mongolian beef with skirt steak or Sirloin steak or practically any other cut of beef of your choice. The idea is to get a tender bite once the beef is done cooking.
  • To cut down the prep time for this recipe, you can also prepare the sauce with the minced garlic, low sodium soy sauce brown sugar and other ingredients and bottle it up. This can last for 3-4 days in the refrigerator, and you can use it whenever you’re making the recipe.

Can I Make This Without A Slow Cooker?

  • Using Crock Pots or any other slow cooker for that matter is a great idea, not just when it comes to making this Mongolian beef recipe, but a lot of other recipes.
  • A slow cooker can help you make delicious meals in less than half the time you would need to make it in a regular pot, and that’s pretty amazing in my opinion.
  • That said, if you don’t have a slow cooker, you can totally use a regular pot to make this Mongolian beef too.

What To Serve With Mongolian Beef?

  • I love serving this Crockpot Mongolian beef with some Steamed Rice to make it a complete meal.
  • You can also go beyond that and team the Mongolian beef with some steamed broccoli, shredded carrots and sliced water chestnuts for that bit of crunch factor.
  • You can also team up some Sweet Corn and Creamy Broccoli Salad along with the cooked rice to go with this dish.
  • Don’t forget to top the slow cooker Mongolian beef with some chopped green onion before you serve!
mealplan for eat your beets
Slow cooker mongolian beef

Slow Cooker Mongolian Beef

Enjoy the rich, savory flavors of takeout with this Slow Cooker Mongolian Beef! Tender beef is slow-cooked to perfection in a flavorful soy-ginger sauce, creating a deliciously satisfying meal.
Prep Time 10 minutes
Cook Time 3 hours
Total Time 3 hours 10 minutes
Serving Size 4 Servings

Ingredients

  • 1 lbs. Flank Steak
  • 3 Garlic Cloves
  • 1 inch Ginger
  • 1 Scallion
  • ½ cup Reduced Salt Soy Sauce
  • 1/3 cup Brown Sugar
  • ¼ cup Cornstarch
  • ¼ cup Water
  • 2 tbsp vegetable oil
  • 1 tbsp Sesame Oil
  • 1 tbsp Sesame Seeds
  • Salt to taste
  • Black Pepper to taste

Instructions

  • Thinly cut the flank steak against the grain, and then dice. Put the steak in a bowl.
  • Season flank steak with salt and pepper to taste, and coat with cornstarch. Mix until well combined.
  • Mince your ginger and garlic.
  • At the bottom of the slow cooker, add the vegetable oil and then add the steak.
  • Then add the garlic, ginger, brown sugar, sesame oil, soy sauce and water. Stir ingredients until well combined.
  • Turn the slow cooker on 2.5 hours on high or 4-5 hours on low. Then stir when done cooking.
  • Slice the scallion. Garnish the Mongolian beef with scallions and sesame seeds and serve over rice.

Nutrition

Serving: 1g | Calories: 382kcal | Carbohydrates: 29g | Protein: 28g | Fat: 17g | Saturated Fat: 4g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 6g | Trans Fat: 0.04g | Cholesterol: 68mg | Sodium: 1216mg | Potassium: 557mg | Fiber: 1g | Sugar: 18g | Vitamin A: 30IU | Vitamin C: 1mg | Calcium: 75mg | Iron: 3mg

Notes

To add some more flavor to the sauce, you can also add a dash of Hoisin sauce into the slow cooker along with the flank steak.
I used flank steak for this recipe, but you can also try making slow cooker Mongolian beef with skirt steak or Sirloin steak or practically any other cut of beef of your choice. The idea is to get a tender bite once the beef is done cooking.
To cut down the prep time for this recipe, you can also prepare the sauce with the minced garlic, low sodium soy sauce brown sugar and other ingredients and bottle it up. This can last for 3-4 days in the refrigerator, and you can use it whenever you’re making the recipe.

More Recipes to Try

If you enjoyed this slow cooker Mongolian beef recipe, and are inspired to try some more such interesting recipes, here are a few handpicked ones you might want to check out.

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