Slow Cooker Mongolian Beef

Highlighted under: World Cuisine Recipes

Experience the savory delight of Slow Cooker Mongolian Beef, a dish that combines tender beef with a sweet and savory sauce for an unforgettable meal.

Lena

Created by

Lena

Last updated on 2025-12-02T17:02:02.317Z

This Slow Cooker Mongolian Beef recipe is perfect for busy weeknights. The flavors meld beautifully as the beef cooks slowly, making it tender and flavorful.

Why You Will Love This Recipe

  • Tender beef cooked to perfection in a savory sauce
  • Minimal prep time with maximum flavor
  • Perfect for serving over rice or noodles
  • Family-friendly and sure to please everyone at the table

The Perfect Weeknight Meal

Slow Cooker Mongolian Beef is the ultimate choice for a busy weeknight dinner. With its minimal prep time and hands-off cooking method, you can spend less time in the kitchen and more time with your family. Simply marinate the beef, toss it in the slow cooker, and let it do the work for you. This recipe is designed to fit seamlessly into your hectic schedule, delivering a delicious homemade meal without the fuss.

Not only is it easy to prepare, but this dish also offers a fantastic flavor profile that will entice even the pickiest eaters at your table. The combination of savory soy sauce, sweet brown sugar, and aromatic garlic and ginger creates a mouthwatering sauce that clings perfectly to the tender beef, making it a hit with both kids and adults alike.

Serving Suggestions

When it comes to serving Slow Cooker Mongolian Beef, the options are endless. One of the most popular choices is to serve it over steamed jasmine rice, which absorbs the flavorful sauce beautifully. Alternatively, you can pair it with egg noodles for a comforting twist. The dish can also be served with a side of stir-fried vegetables or a fresh salad to add some crunch and balance the meal.

For a fun and casual dining experience, consider making lettuce wraps with the Mongolian beef. Simply spoon the beef mixture into crisp lettuce leaves, add some crunchy veggies, and a sprinkle of sesame seeds for a delightful bite-sized treat. This versatility makes the dish perfect for family dinners, meal prep, or entertaining guests.

Storing and Reheating

If you find yourself with leftovers, you're in luck! Slow Cooker Mongolian Beef stores well in an airtight container in the refrigerator for up to 3 days. The flavors continue to develop, making the leftovers even more delicious the next day. Just remember to let the beef cool completely before storing it to maintain its tenderness.

Reheating is a breeze, too. Simply warm it up on the stovetop over low heat, adding a splash of water or broth to loosen the sauce if needed. Alternatively, you can use a microwave, heating in short intervals until warmed through. This makes it perfect for quick lunches or dinners throughout the week!

Ingredients

Ingredients for Mongolian Beef

  • 2 pounds flank steak, sliced thinly against the grain
  • 1/2 cup soy sauce
  • 1/2 cup brown sugar
  • 1/4 cup water
  • 2 teaspoons minced garlic
  • 1 teaspoon minced ginger
  • 1/4 teaspoon red pepper flakes (optional)
  • 2 tablespoons cornstarch
  • 2 tablespoons vegetable oil
  • Green onions, for garnish
  • Sesame seeds, for garnish

Instructions

Cooking Steps

Prepare the Beef

In a large bowl, combine soy sauce, brown sugar, water, garlic, ginger, and red pepper flakes. Add the sliced flank steak and toss to coat. Let it marinate for 15 minutes.

Cook in the Slow Cooker

Transfer the beef and marinade to the slow cooker. Cook on low for 6 hours or high for 3 hours.

Thicken the Sauce

About 30 minutes before serving, mix cornstarch with a little water to create a slurry. Stir it into the slow cooker to thicken the sauce.

Serve

Serve the Mongolian beef over rice or noodles. Garnish with green onions and sesame seeds.

Enjoy Your Meal!

Tips for the Best Mongolian Beef

For a truly tender result, always slice the flank steak against the grain. This technique shortens the muscle fibers, making each bite easier to chew and enhancing the overall texture of the dish. If you're unsure, look for the direction of the grain and cut perpendicular to it for optimal results.

Feel free to adjust the sweetness of the sauce to your liking. If you prefer a less sweet dish, reduce the brown sugar slightly. Conversely, if you enjoy a sweeter flavor, add a bit more. The beauty of this recipe lies in its flexibility, allowing you to customize it to suit your palate.

Ingredient Substitutions

If you're out of flank steak, don't worry! This recipe can be adapted using other cuts of beef, such as sirloin or chuck roast. Just keep in mind that cooking times may vary slightly depending on the cut you choose, so always check for tenderness before serving.

For a gluten-free version, substitute the soy sauce with tamari or coconut aminos. These alternatives provide a similar flavor without the gluten, ensuring everyone can enjoy this delicious dish. Additionally, you can swap out brown sugar for coconut sugar or a sugar-free sweetener to cater to different dietary needs.

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Questions About Recipes

→ Can I use a different cut of beef?

Yes, you can use sirloin or chuck roast if you prefer.

→ Can I make this dish gluten-free?

Yes, use gluten-free soy sauce or tamari instead of regular soy sauce.

→ How can I store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days.

→ Can I freeze Mongolian Beef?

Yes, you can freeze it for up to 2 months. Thaw in the refrigerator before reheating.

Slow Cooker Mongolian Beef

Experience the savory delight of Slow Cooker Mongolian Beef, a dish that combines tender beef with a sweet and savory sauce for an unforgettable meal.

Prep Time15 minutes
Cooking Duration6 hours
Overall Time6 hours 15 minutes

Created by: Lena

Recipe Type: World Cuisine Recipes

Skill Level: Easy

Final Quantity: 4 servings

What You'll Need

Ingredients for Mongolian Beef

  1. 2 pounds flank steak, sliced thinly against the grain
  2. 1/2 cup soy sauce
  3. 1/2 cup brown sugar
  4. 1/4 cup water
  5. 2 teaspoons minced garlic
  6. 1 teaspoon minced ginger
  7. 1/4 teaspoon red pepper flakes (optional)
  8. 2 tablespoons cornstarch
  9. 2 tablespoons vegetable oil
  10. Green onions, for garnish
  11. Sesame seeds, for garnish

How-To Steps

Step 01

In a large bowl, combine soy sauce, brown sugar, water, garlic, ginger, and red pepper flakes. Add the sliced flank steak and toss to coat. Let it marinate for 15 minutes.

Step 02

Transfer the beef and marinade to the slow cooker. Cook on low for 6 hours or high for 3 hours.

Step 03

About 30 minutes before serving, mix cornstarch with a little water to create a slurry. Stir it into the slow cooker to thicken the sauce.

Step 04

Serve the Mongolian beef over rice or noodles. Garnish with green onions and sesame seeds.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 10g
  • Cholesterol: 85mg
  • Sodium: 920mg
  • Total Carbohydrates: 24g
  • Dietary Fiber: 1g
  • Sugars: 18g
  • Protein: 23g