Slow Cooker Mongolian Beef

Name: Slow Cooker Mongolian Beef
Prep time: 15 min
Cook time: 3 h
Total time: 3 h 15 min
Cuisine: Asian
Ingredients: 1 1/2 pounds flank steak (thinly sliced against the grain); 1/4 cup cornstarch; 1 tablespoon toasted sesame oil; 1 teaspoon minced garlic; 1 teaspoon minced ginger; 1/2 cup low sodium soy sauce; 1/3 cup brown sugar; 1/2 cup water; 1/2 cup green onions (for garnish)

kate

Update : February 26, 2026

Delicious slow cooker Mongolian beef served with rice and vegetables

why make this recipe

Slow Cooker Mongolian Beef is a delicious and easy meal that brings rich flavors to your dinner table. The beauty of this recipe lies not only in its taste but also in its simplicity. Using a slow cooker means you can set it and forget it, making it perfect for busy days. The tender beef soaked in a savory sauce is hard to resist, and it’s great for family dinners or special occasions.

how to make Slow Cooker Mongolian Beef

Making Slow Cooker Mongolian Beef is straightforward. Follow these easy steps to create a delightful dish that everyone will love.

Ingredients:

1 1/2 pounds flank steak (thinly sliced against the grain)
1/4 cup cornstarch
1 tablespoon toasted sesame oil
1 teaspoon minced garlic
1 teaspoon minced ginger
1/2 cup low sodium soy sauce
1/3 cup brown sugar
1/2 cup water
1/2 cup green onions (for garnish)

Directions:

Toss the flank steak with cornstarch in a mixing bowl until evenly coated.
Place the coated steak in a slow cooker and add sesame oil, garlic, ginger, soy sauce, brown sugar, and water. Stir gently to combine everything.
Cover and cook on HIGH for 2-3 hours or LOW for 4-5 hours until the beef is tender.
Stir in green onions just before serving.

how to serve Slow Cooker Mongolian Beef

You can serve Slow Cooker Mongolian Beef over steamed rice or noodles to soak up the delicious sauce. Adding a side of stir-fried vegetables can also make for a balanced meal. This dish is perfect for family dinners or casual get-togethers, and it can be enjoyed warm on its own or with a sprinkle of sesame seeds for added flavor.

how to store Slow Cooker Mongolian Beef

To store your leftover Mongolian Beef, let it cool completely, and then transfer it to an airtight container. You can keep it in the refrigerator for up to 3-4 days. If you want to store it for longer, it’s great for freezing! Just make sure to use a freezer-safe container and it can last for about 2-3 months.

tips to make Slow Cooker Mongolian Beef

Cut Against the Grain: Make sure to slice the flank steak against the grain for the most tender results.
Don’t Skip the Cornstarch: This helps create a nice sauce. Coat the beef well for the best flavor and texture.
Adjust Sweetness: If you prefer a sweeter sauce, you can add a little more brown sugar to taste.

variation

You can customize this recipe by adding in your favorite vegetables, such as bell peppers or snap peas, during the last hour of cooking for extra color and nutrition. Additionally, if you want to spice things up, consider adding some red pepper flakes for a bit of heat.

FAQs

Can I use a different cut of meat?
Yes, you can use other cuts like sirloin or chuck roast, but cooking times may vary.
Is this recipe gluten-free?
It can be made gluten-free by using a gluten-free soy sauce alternative.
Can I double this recipe?
Yes, you can double the ingredients, but make sure your slow cooker has enough capacity to accommodate the extra volume. Adjust cooking times as necessary.