Slow Cooker Mongolian Beef

Highlighted under: Taste the World Recipes

Enjoy tender beef cooked to perfection in a savory sauce with sweet and tangy notes, all made effortlessly in your slow cooker.

Anna

Created by

Anna

Last updated on 2025-12-02T18:58:02.502Z

This Slow Cooker Mongolian Beef is perfect for busy weeknights when you want a delicious meal without the hassle. The flavors meld beautifully as the beef cooks low and slow, making it incredibly tender and flavorful.

Why You Will Love This Recipe

  • Tender beef that falls apart with a fork
  • Savory and sweet sauce with a hint of ginger
  • Effortless preparation with minimal clean-up

The Perfect Slow Cooker Meal

Slow cooking is a game changer when it comes to creating hearty meals with minimal effort. The beauty of a slow cooker is that you can set it and forget it, allowing the flavors to meld beautifully over time. This Slow Cooker Mongolian Beef is a prime example of how simple ingredients can transform into a delightful dish that your entire family will love. Whether you're busy with work or simply want to enjoy a relaxing evening at home, this recipe requires little attention while it delivers maximum flavor.

Additionally, the slow cooking process tenderizes the beef, making it incredibly easy to shred or slice when serving. The combination of soy sauce, brown sugar, and hoisin sauce creates a sweet and savory glaze that seeps into the meat, ensuring every bite is bursting with flavor. Serve it over rice or noodles, and you have a complete meal that feels indulgent without the hassle of extensive cooking.

Flavor Profile

The flavor profile of this Mongolian Beef is what truly sets it apart. The rich umami from the soy sauce pairs perfectly with the sweetness of brown sugar and the depth of flavor from hoisin sauce. The addition of garlic and ginger elevates the taste, adding a fresh, aromatic quality that rounds out the dish beautifully. For those who enjoy a bit of heat, the crushed red pepper flakes provide just the right amount of spice without overpowering the other flavors.

As the beef slow cooks, it absorbs all these wonderful flavors, resulting in a dish that is both comforting and exciting. You’ll find that the sauce is perfect for drizzling over your choice of rice or noodles, making each bite a delightful experience. This balance of sweet, savory, and spicy creates a satisfying dish that keeps you coming back for more.

Tips for Perfect Mongolian Beef

To ensure your Mongolian Beef turns out perfectly, choose flank steak that is well-marbled. The fat content in the meat will break down during the slow cooking process, resulting in a tender and juicy dish. Additionally, slicing the beef thinly against the grain will help to maximize tenderness, allowing the meat to absorb the flavors of the sauce more effectively.

Another tip is to adjust the sweetness and spice levels according to your taste. If you prefer a sweeter sauce, consider adding a bit more brown sugar or hoisin sauce. For those who enjoy a kick, a few extra red pepper flakes can enhance the dish's overall flavor. Don’t hesitate to customize it to suit your family's preferences!

Ingredients

Gather these ingredients to make your Slow Cooker Mongolian Beef:

Main Ingredients

  • 1 pound flank steak, sliced thinly
  • 1/2 cup soy sauce
  • 1/4 cup brown sugar
  • 1/4 cup hoisin sauce
  • 2 cloves garlic, minced
  • 1 teaspoon ginger, minced
  • 1/2 teaspoon crushed red pepper flakes
  • 2 green onions, chopped

Once you have everything ready, you can start cooking!

Instructions

Follow these simple steps to prepare your Slow Cooker Mongolian Beef:

Prepare the Beef

In a mixing bowl, combine the soy sauce, brown sugar, hoisin sauce, garlic, ginger, and red pepper flakes. Stir until the sugar is dissolved.

Combine in Slow Cooker

Place the sliced flank steak in the slow cooker and pour the sauce mixture over the beef. Mix well to ensure the beef is coated evenly.

Cook

Cover and cook on low for 6 hours or on high for 3 hours, until the beef is tender.

Serve

Once cooked, stir in the chopped green onions and serve the Mongolian beef over rice or noodles.

Enjoy your delicious meal!

Serving Suggestions

When it comes to serving Slow Cooker Mongolian Beef, you have plenty of delicious options. A popular choice is to serve it over fluffy white rice or fragrant jasmine rice, which absorbs the flavorful sauce beautifully. For a low-carb alternative, consider serving the beef over steamed broccoli or cauliflower rice.

If you want to elevate the meal further, garnish your dish with additional chopped green onions or sesame seeds for added texture and flavor. Including a side of stir-fried vegetables can also add color and nutrition to your plate, making this dish not only satisfying but also visually appealing.

Storing and Reheating

Leftover Mongolian Beef can be stored in an airtight container in the refrigerator for up to three days. This makes it a great option for meal prep or for busy weeknight dinners. If you find yourself with extra servings, don’t hesitate to save them for a quick lunch or dinner later in the week.

To reheat, simply warm the beef in the microwave or on the stovetop over low heat. Adding a splash of water or broth can help to keep the beef moist while reheating. This dish also freezes well, so if you want to make a larger batch, feel free to store some in the freezer for up to three months for a convenient meal at a later date.

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Questions About Recipes

→ Can I use another cut of beef?

Yes, sirloin or chuck roast can also work well for this recipe.

→ Can I make this dish spicy?

Absolutely! Add more crushed red pepper flakes or some chili paste to taste.

→ How do I store leftovers?

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

→ Can I freeze this dish?

Yes, you can freeze it for up to 3 months. Just thaw it in the refrigerator before reheating.

Slow Cooker Mongolian Beef

Enjoy tender beef cooked to perfection in a savory sauce with sweet and tangy notes, all made effortlessly in your slow cooker.

Prep Time15 minutes
Cooking Duration6 hours
Overall Time6 hours 15 minutes

Created by: Anna

Recipe Type: Taste the World Recipes

Skill Level: Easy

Final Quantity: 4 servings

What You'll Need

Main Ingredients

  1. 1 pound flank steak, sliced thinly
  2. 1/2 cup soy sauce
  3. 1/4 cup brown sugar
  4. 1/4 cup hoisin sauce
  5. 2 cloves garlic, minced
  6. 1 teaspoon ginger, minced
  7. 1/2 teaspoon crushed red pepper flakes
  8. 2 green onions, chopped

How-To Steps

Step 01

In a mixing bowl, combine the soy sauce, brown sugar, hoisin sauce, garlic, ginger, and red pepper flakes. Stir until the sugar is dissolved.

Step 02

Place the sliced flank steak in the slow cooker and pour the sauce mixture over the beef. Mix well to ensure the beef is coated evenly.

Step 03

Cover and cook on low for 6 hours or on high for 3 hours, until the beef is tender.

Step 04

Once cooked, stir in the chopped green onions and serve the Mongolian beef over rice or noodles.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 12g
  • Saturated Fat: 4g
  • Cholesterol: 60mg
  • Sodium: 820mg
  • Total Carbohydrates: 38g
  • Dietary Fiber: 1g
  • Sugars: 20g
  • Protein: 30g