Mongolian Beef from the Slow Cooker
You can make Mongolian beef in a slow cooker using a pre-prepared freezer bag. The bag contains beef, vegetables, sauces, and spices.
The beef is marinated in the freezer and then cooked in the slow cooker when you are ready.
The result is tender beef cooked with carrots and green onions in a sweet soy sauce.
By Nadia Kovalenko
Posted October 21, 2026Share
Time
Calories
Servings
Difficulty
Description
You can make Mongolian beef in a slow cooker using a pre-prepared freezer bag. The bag contains beef, vegetables, sauces, and spices.
The beef is marinated in the freezer and then cooked in the slow cooker when you are ready.
The result is tender beef cooked with carrots and green onions in a sweet soy sauce.
Quick Tip Read the recipe in its entirety before you start cooking. This will help you understand the ingredients, steps, and timing involved, and allow you to prepare any necessary equipment or ingredients beforehand.
Ingredients 10
0.25 cup cornstarch
1.5 pounds beef flank steak
0.75 cup water
0.75 cup soy sauce
0.75 cup brown sugar
0.5 cup shredded carrots
3 green onions, chopped
2 tablespoons olive oil
2 cloves garlic, minced
0.5 teaspoon minced fresh ginger root
Instructions
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1
Cover the bottom of a wide bowl with 0.25 cup cornstarch. Coat 1.5 pounds beef flank steak in the cornstarch and put it in a large resealable plastic bag.
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2
Mix 0.75 cup water, 0.75 cup soy sauce, 0.75 cup brown sugar, 0.5 cup shredded carrots, 3 chopped green onions, 2 tablespoons olive oil, 2 cloves minced garlic, and 0.5 teaspoon minced fresh ginger root in a bowl. Pour the mixture into the bag with the beef and seal it.
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3
Put the bag in the freezer. The day before you want to eat, move it to a bowl in the refrigerator to thaw for 24 hours.
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4
Empty the bag into a slow cooker. Cover and cook on Low for 4 to 5 hours or High for 2 to 3 hours until the beef is tender.
Nutrition Facts
Servings 6
Amount Per Serving
-
Calories 320 kcal
% Daily Value *
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Total Fat 13g
-
Saturated Fat 4g
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Cholesterol 36mg
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Sodium 1857mg
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Total Carbohydrate 36g
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Dietary Fiber 1g
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Protein 16g
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
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