Slow Cooker Mongolian Beef: 5 Simple Steps to Perfection

Name: Slow Cooker Mongolian Beef: 5 Simple Steps to Perfection
Prep time: 15 min
Cook time: 4 h
Total time: 4 h 15 min
Cuisine: Asian
Ingredients: 1.5 lbs flank steak, thinly sliced; 1/2 cup low-sodium soy sauce; 1/3 cup brown sugar; 1/4 cup hoisin sauce; 1/4 cup water; 3 cloves garlic, minced; 1-inch piece fresh ginger, grated; 2 tablespoons cornstarch; 2 green onions, sliced for garnish; 2 tablespoons vegetable oil

by Manar Jota

October 28, 2025

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Slow Cooker Mongolian Beef is a delightful dish that transforms tender slices of beef into a sweet and savory meal, perfect for busy weeknights. The rich flavors of the Mongolian sauce, combined with the ease of a slow cooker, make this a go-to recipe in my kitchen. Whether you’re serving it over rice or noodles, the aroma that fills your home is sure to make your mouth water. Let’s dive into this easy slow cooker Mongolian Beef recipe!

Why You’ll Love This Slow Cooker Mongolian Beef

This slow-cooked Mongolian Beef recipe is not just delicious; it’s also incredibly convenient for several reasons. First, it requires minimal prep time, making it perfect for those busy evenings. Second, the slow cooking method ensures that the beef becomes melt-in-your-mouth tender, a hallmark of any great Mongolian beef dish. Third, it offers flexibility in serving—pair it with rice, noodles, or even steamed vegetables for a wholesome meal. Fourth, it’s a hit with the entire family, ensuring everyone will enjoy it. Additionally, it’s a great option for meal prep, making it easy to enjoy this dish throughout the week. Finally, it’s a gluten-free slow cooker Mongolian Beef recipe, making it suitable for various dietary needs.

Slow Cooker Mongolian Beef: 5 Simple Steps to Perfection - Slow Cooker Mongolian Beef - main visual representation

Ingredients for Slow Cooker Mongolian Beef

Gather these items:

1.5 lbs flank steak, thinly sliced
1/2 cup low-sodium soy sauce
1/3 cup brown sugar
1/4 cup hoisin sauce
1/4 cup water
3 cloves garlic, minced
1-inch piece fresh ginger, grated
2 tablespoons cornstarch
2 green onions, sliced for garnish
2 tablespoons vegetable oil

How to Make Slow Cooker Mongolian Beef Step-by-Step

Step 1: In a large bowl, toss the sliced flank steak with cornstarch until evenly coated.
Step 2: Heat the vegetable oil in a skillet over medium-high heat and sear the steak strips for 1-2 minutes per side until lightly browned.
Step 3: Transfer the browned beef to the slow cooker.
Step 4: In a small bowl, whisk together soy sauce, brown sugar, hoisin sauce, water, minced garlic, and grated ginger.
Step 5: Pour the sauce over the beef in the slow cooker and mix to coat evenly.
Step 6: Cover and cook on low for 4 hours, or until the beef is tender. Garnish with sliced green onions before serving.

Pro Tips for the Perfect Slow Cooker Mongolian Beef

Keep these in mind:

Serve over rice or noodles for a complete meal.
Adjust sweetness by varying the amount of brown sugar.
For a low-carb option, serve it with steamed broccoli instead of rice.

Best Ways to Serve Slow Cooker Mongolian Beef

This slow cooker Asian beef dish is incredibly versatile. It’s delicious served over fluffy rice or noodles, but you can also enjoy it with steamed vegetables for a healthier twist. For a complete meal, consider adding some sautéed bell peppers or broccoli, which pairs nicely with the sweet and savory flavors.

Slow Cooker Mongolian Beef: 5 Simple Steps to Perfection - Slow Cooker Mongolian Beef - additional detail

How to Store and Reheat Slow Cooker Mongolian Beef

To make this recipe even more convenient, you can store leftovers in an airtight container in the refrigerator for up to three days. To reheat, simply place it in the microwave or heat it on the stovetop until warmed through. This is a great option for Mongolian Beef crockpot meal prep.

Frequently Asked Questions About Slow Cooker Mongolian Beef

What’s the secret to perfect Slow Cooker Mongolian Beef?

The secret lies in the slow cooking process, which allows the flavors to meld beautifully while making the beef incredibly tender. Using flank steak is ideal as it absorbs the sauce well; this is why tender Mongolian Beef with slow cooker is a must-try.

Can I make Slow Cooker Mongolian Beef ahead of time?

Absolutely! This dish can be made ahead and stored, making it perfect for meal prep. Just reheat when you’re ready to enjoy. It’s one of the best slow cooker recipes for Mongolian Beef that can save you time.

How do I avoid common mistakes with Slow Cooker Mongolian Beef?

To avoid common mistakes, ensure you don’t overcook the beef, as it can become tough. Also, make sure to coat the meat in cornstarch for that perfect texture. Following the instructions precisely will help you achieve the best results.

Variations of Slow Cooker Mongolian Beef You Can Try

If you’re looking to mix things up, consider adding some vegetables like bell peppers or snap peas to your slow cooker for added nutrition. You can also experiment with different cuts of meat, such as sirloin or chuck, for a different flavor profile. For a low-carb version, serve it with zucchini noodles instead of traditional noodles.

For more delicious recipes, check out our recipe collection. If you’re interested in other Asian-inspired dishes, you might enjoy Chinese Style Mango Chicken Stir Fry or Mongolian Ground Beef Noodles. Don’t forget to explore Peruvian Chicken and Rice with Green Sauce for a unique twist!