Slow Cooker Mongolian Beef

Name: Slow Cooker Mongolian Beef
Prep time: 15 min
Cook time: 6 h
Total time: 6 h 15 min
Yield: 4 servings
Ingredients: 2 pounds flank steak, sliced thinly against the grain; 1/4 cup soy sauce; 1/4 cup brown sugar; 1 tablespoon minced garlic; 1 tablespoon minced ginger; 1/2 teaspoon black pepper; 1/4 cup water; 1 tablespoon cornstarch (optional, for thickening); Cooked rice or noodles; Sliced green onions; Sesame seeds

Highlighted under: WorldTaste Adventures

Delight in the rich flavors of this Slow Cooker Mongolian Beef, where tender beef meets a savory, sweet sauce that will have everyone asking for seconds.

Created by

Emma

Last updated on 2025-12-02T18:30:02.963Z

This Slow Cooker Mongolian Beef recipe is perfect for busy weeknights. Simply toss the ingredients in your slow cooker and let it work its magic while you go about your day. The result is a tender, flavorful dish that pairs perfectly with rice or noodles.

        Why You'll Love This Recipe
        Rich and savory flavor that satisfies every craving
Tender beef that falls apart with a fork
Easy preparation with minimal cleanup
Perfect for meal prep and leftovers

      

The Perfect Comfort Food

Slow Cooker Mongolian Beef is the ultimate comfort food that warms your heart and satisfies your cravings. The combination of tender, slow-cooked flank steak and a rich, savory-sweet sauce makes it a family favorite. Whether you're looking for a cozy weeknight dinner or a dish to impress guests, this recipe fits the bill perfectly. It's a delightful way to bring the flavors of Asian cuisine into your home without the fuss of takeout.

The slow-cooking process allows the beef to absorb all the delicious flavors of the marinade, resulting in a melt-in-your-mouth texture that everyone will love. This dish is especially popular during colder months, but its appealing taste makes it suitable for any occasion. Enjoy it with a side of rice or noodles, and you have a meal that is both filling and comforting.

Easy Meal Prep Solution

One of the best aspects of Slow Cooker Mongolian Beef is its simplicity. With minimal prep time, you can set it and forget it, allowing you to focus on other tasks or simply relax. This makes it an ideal choice for busy families or anyone who wants to streamline their cooking routine. Just slice the beef, mix the sauce ingredients, and let the slow cooker do the work for you.

Additionally, this recipe is perfect for meal prepping. You can make a large batch and store the leftovers in the refrigerator for up to three days or freeze them for longer storage. This means you can have delicious, homemade meals ready to go whenever you need them. Just reheat and serve for a quick and satisfying dinner any day of the week.

Customization and Variations

While the classic Slow Cooker Mongolian Beef is already a hit, there are plenty of ways to customize it to suit your taste preferences. Feel free to add vegetables such as bell peppers, broccoli, or snap peas during the last hour of cooking to enhance the nutritional value and add a pop of color to your dish. These additions not only make the meal more balanced but also add delightful textures and flavors.

You can also adjust the sweetness or spice level by modifying the amount of brown sugar or adding a splash of hot sauce if you like a little heat. This recipe is versatile enough that you can experiment with different ingredients to create your unique version of this beloved dish.

Ingredients

For the Beef

2 pounds flank steak, sliced thinly against the grain
1/4 cup soy sauce
1/4 cup brown sugar
1 tablespoon minced garlic
1 tablespoon minced ginger
1/2 teaspoon black pepper
1/4 cup water
1 tablespoon cornstarch (optional, for thickening)

For Serving

Cooked rice or noodles
Sliced green onions
Sesame seeds

Enjoy your Slow Cooker Mongolian Beef with your choice of rice or noodles for a complete meal!

Instructions

Prepare the Beef

In a bowl, combine soy sauce, brown sugar, minced garlic, minced ginger, black pepper, and water. Add the sliced flank steak, making sure it is well coated.

Slow Cook

Transfer the beef mixture to the slow cooker. Cook on low for 6 hours or high for 3 hours until the beef is tender.

Thicken the Sauce (Optional)

If you prefer a thicker sauce, mix cornstarch with a little water to form a slurry, then stir it into the slow cooker during the last 30 minutes of cooking.

Serve

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

Enjoy this delicious dish with family and friends!

Serving Suggestions

To elevate your dining experience, serve Slow Cooker Mongolian Beef over fluffy white rice or chewy noodles. Both options perfectly complement the rich sauce and enhance the overall meal. For an extra burst of flavor, drizzle a bit of sesame oil over the top before serving.

Garnishing the dish with sliced green onions and toasted sesame seeds not only adds vibrant color but also a delightful crunch. These finishing touches will impress your guests and make your meal visually appealing, ensuring that it looks just as good as it tastes.

Storing and Reheating

If you have leftovers, store them in an airtight container in the refrigerator. The flavors will continue to develop, making the dish even more delicious the next day. When reheating, do so gently on the stovetop or in the microwave, adding a splash of water if needed to maintain moisture.

For longer storage, you can freeze the Mongolian beef in portions. Just ensure it's well-sealed to prevent freezer burn. When you're ready to enjoy it again, simply thaw overnight in the refrigerator and reheat as mentioned. This makes it a convenient option for quick meals without sacrificing taste.

Questions About Recipes

→ Can I use a different cut of beef?

Yes, you can use cuts like sirloin or chuck, but cooking times may vary.

→ Is this recipe gluten-free?

To make it gluten-free, use tamari instead of soy sauce.

→ Can I freeze leftovers?

Yes, you can freeze leftovers in an airtight container for up to 3 months.

→ How can I make it spicier?

Add red pepper flakes or diced chili peppers to the sauce.