Slow Cooker Mongolian Beef
Slow Cooker Mongolian Beef is a delightful dish that will bring the flavors of the East to your kitchen with minimal effort. This recipe is particularly convenient for busy individuals or families, as it allows you to prepare a tasty meal without constantly monitoring your stove. The result is tender, flavorful beef, coated in a savory sauce that pairs perfectly with rice or noodles.
Why Make This Recipe
There are many reasons to love Slow Cooker Mongolian Beef. First and foremost, it’s incredibly easy to prepare. Just toss the ingredients into a slow cooker, set the timer, and let it do the work for you! This dish is also very adaptable; you can customize it to suit your taste preferences or dietary needs. Moreover, the slow cooking process infuses the meat with rich flavors and makes it wonderfully tender. It’s a fantastic choice for family dinners, gatherings, or even meal prepping for the week ahead.
How to Make Slow Cooker Mongolian Beef
Let’s dive into the process of creating this enticing meal. You’ll enjoy how simple and straightforward it is, allowing you to spend more time with your loved ones while the slow cooker takes care of the cooking.

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.
- Cover and cook on HIGH for 2-3 hours or LOW for 4-5 hours until beef is tender.
- Stir in green onions just before serving.

Pro Tips for Success Slow Cooker Mongolian Beef
- Slice Against the Grain: Ensuring you slice the flank steak against the grain will help lead to tender pieces of meat.
- Marinate for Extra Flavor: If you have time, marinate the thinly sliced beef in the soy sauce and sesame oil mixture for an hour before cooking for enhanced flavor.
- Don’t Overcrowd the Slow Cooker: If the slow cooker is too full, the meat may not cook evenly. If necessary, split the ingredients into two batches.
- Adjust Sauce Consistency: If you prefer a thicker sauce, let the dish cook uncovered for the last 30 minutes, or mix a slurry of cornstarch and water to thicken it before serving.
- For an Extra Kick: Add some red pepper flakes or sliced chili for a spicy kick.
- Garnish Smartly: Fresh ingredients like cilantro or sesame seeds can elevate the dish visually and taste wise.
Flavor Variations Slow Cooker Mongolian Beef
- Spicy Mongolian Beef: Add chili sauce or sliced jalapeños to give the dish a spicy kick that complements the savory flavors.
- Vegetarian Option: Substitute the flank steak with firm tofu or seitan for a plant-based version. Adjust cooking time accordingly, as tofu cooks faster.
- Asian Broccoli Addition: Stir in some broccoli florets or snow peas in the last hour of cooking for added texture and nutrition.
- Sweet and Sour Twist: Mix in some pineapple chunks for a sweet twist that harmonizes beautifully with the savory elements of the dish.
- Garlic Lovers: Increase the minced garlic to 2 teaspoons for those who can’t get enough of this aromatic flavor.
Serving Suggestions Slow Cooker Mongolian Beef
Slow Cooker Mongolian Beef pairs wonderfully with fluffy white rice, fried rice, or noodles. You can also serve it alongside steamed vegetables to create a balanced meal. For a fun twist, consider serving it in lettuce wraps for a fresh and crunchy option.
Storage and Freezing Instructions Slow Cooker Mongolian Beef
If you have leftovers (if you’re lucky!), let them cool completely before transferring to an airtight container. The dish can be stored in the refrigerator for up to 3-5 days. Alternatively, if you wish to freeze, portion out the beef and sauce into freezer-safe bags, removing excess air, and store them in the freezer for up to 3 months. When you’re ready to enjoy, thaw overnight in the refrigerator and reheat in the microwave or on the stovetop.
Nutrition Facts (Per Serving)
- Calories: 290
- Protein: 26g
- Carbohydrates: 20g
- Fat: 12g
- Fiber: 1g
- Sodium: 700mg
FAQ About Slow Cooker Mongolian Beef
Can I use a different cut of beef for this recipe?
Yes, while flank steak is recommended for its tenderness and flavor, you can also use other cuts like sirloin or chuck roast. Just be mindful that cooking times may vary based on the cut’s thickness and fat content.
What can I substitute for low sodium soy sauce?
If you don’t have low sodium soy sauce, regular soy sauce can be used, but be sure to adjust the amount of salt in the recipe accordingly. Alternatively, you can use tamari for a gluten-free option or coconut aminos for a lower-sodium and soy-free choice.
Can I make this dish in the oven instead of a slow cooker?
Absolutely! To make Mongolian Beef in the oven, preheat your oven to 300°F (150°C) and use a covered casserole dish. Follow the same preparation steps, and bake for about 1.5 to 2 hours, stirring occasionally until the beef is cooked and tender.
Is Slow Cooker Mongolian Beef spicy?
The recipe as written is not spicy. However, if you enjoy spice, you can add red pepper flakes or fresh chilies to suit your taste. Adjust the quantity according to your heat tolerance!
Can I make this recipe gluten-free?
Yes! You can use gluten-free soy sauce (often labeled as tamari) in place of regular soy sauce. Make sure to check the labels on any other ingredients, such as brown sugar, to ensure there are no gluten-containing additives.
H2: Final Thoughts
Slow Cooker Mongolian Beef is a flavorful and satisfying dish that even the busiest of home cooks can master. Its ease of preparation and the delicious results make it a staple for weeknight dinners, yet it’s impressive enough to serve at gatherings. Whether you stick to the classic version or experiment with some of the suggested variations, this dish is sure to please. So gather your ingredients, set your slow cooker, and get ready for a delightful meal your family will love! Enjoy your culinary adventure with this tasty recipe!
Print
Slow Cooker Mongolian Beef
- Total Time: 195 minutes
- Yield: 4 servings
- Diet: None
Description
A delightful and easy slow cooker recipe for tender Mongolian beef in a savory sauce, perfect for busy families.
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)
Instructions
- 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.
- Cover and cook on HIGH for 120-180 minutes or LOW for 240-300 minutes until beef is tender.
- Stir in green onions just before serving.
Notes
Slice against the grain for tender beef. Marinate for extra flavor if time permits.
- Prep Time: 15 minutes
- Cook Time: 180 minutes
- Category: Main Course
- Method: Slow Cooking
- Cuisine: Asian



