There's something enchanting about the slow-cooked aroma of beef marinating in a savory blend of garlic, ginger, and soy sauce. Just recently, after a long week filled with the hustle and bustle of everyday life, I found myself craving that comforting warmth that only a hearty dish can provide. Enter my Slow Cooker Mongolian Beef, a simple yet delightful meal that comes together with minimal effort.

With just a few ingredients tossed into the slow cooker, you'll be rewarded with tender beef strips steeped in a luscious sauce that's both savory and slightly sweet. Imagine returning home to an irresistible fragrance that hugs you like a warm blanket-it's not just a dinner, it's an experience. Whether you're hosting friends or simply winding down at the end of a busy day, this dish reigns supreme as satisfying comfort food that brings warmth to any table. Join me on this culinary journey, and let's create a dish that will soon become a staple in your kitchen!

Why is Slow Cooker Mongolian Beef so loved?

Effortless preparation is key! With minimal time at the cutting board, you'll have a delectable meal ready to simmer. Savory goodness permeates your kitchen, filling the air with enticing aromas that beckon everyone to the table. Versatile by nature, you can customize this dish by adding your favorite veggies. Rich flavors combine beautifully, offering a perfect balance of sweetness and saltiness that delights the palate. Plus, it's a crowd-pleaser, making it ideal for family dinners or entertaining guests. You'll want to make this as a part of your regular meal rotation, possibly alongside this delightful option for even more culinary inspiration!

Slow Cooker Mongolian Beef Ingredients

For the Beef
• Flank Steak - Tender cuts provide a juicy base for the dish; can substitute with skirt steak or sirloin if needed.
• Cornstarch - Acts as a thickener for the sauce, ensuring a nice coating for the beef.

For the Sauce
• Soy Sauce - Delivers umami richness essential for the dish's savory flavor.
• Brown Sugar - Balances the savory elements with sweetness, creating a delightful contrast.
• Garlic - Adds depth and aroma; fresh garlic is recommended for the best flavor.
• Ginger - Offers a spicy warmth, enhancing the savory profile; fresh ginger is preferred.
• Vegetable Oil - Facilitates even cooking and adds moisture during the slow cooking process.
• Sesame Oil - Imparts a distinct nutty flavor that beautifully complements the dish.

For the Garnish
• Scallion - Used for brightness and crunch; sprinkle generously for a fresh finish.
• Sesame Seeds - A finishing touch that adds texture and a lightly toasted flavor.

This collection of ingredients is what makes Slow Cooker Mongolian Beef an easy-to-create home-cooked meal full of comforting flavors!

How to Make Slow Cooker Mongolian Beef

Slice the Beef: Start by cutting the flank steak thinly against the grain. This step ensures that each bite is tender and juicy. After slicing, chop the strips into smaller, bite-sized pieces for easy serving.
Season and Coat: Generously season the beef pieces with salt and pepper. Then, coat them evenly with cornstarch to create a delightful sauce texture that will cling to the beef during cooking, enhancing its flavor.
Prepare Aromatics: Mince the garlic and ginger carefully. In a separate bowl, combine these fresh ingredients with vegetable oil, ready to be added to the slow cooker for that delicious aroma.
Combine in Slow Cooker: Place the seasoned beef into the slow cooker. This is where the magic happens, as you layer on all the flavors for a comforting meal that nearly cooks itself!
Mix the Sauce: In a mixing bowl, whisk together the minced garlic, ginger, brown sugar, soy sauce, and a splash of water. Pour this savory mixture over the beef in the slow cooker, fully covering it.
Cook to Perfection: Set your slow cooker to high for 2.5 hours or low for 4-5 hours. Stir the beef halfway through cooking to ensure that every piece absorbs the incredible flavors and cooks evenly.
Garnish and Serve: Once cooking is done, garnish your Slow Cooker Mongolian Beef with freshly sliced scallions and toasted sesame seeds for a pop of color and crunch. Serve it over steaming bowls of rice to soak up all that delicious sauce.

Optional: For added texture, include steamed broccoli or bell peppers during the last 30 minutes of cooking.

Exact quantities are listed in the recipe card below.

Expert Tips for Slow Cooker Mongolian Beef

Slicing Technique: Ensure to slice the flank steak against the grain; this prevents the meat from becoming tough and enhances tenderness.
Cornstarch Coating: Don't skip the cornstarch! It's crucial for achieving that perfect sauce consistency that clings beautifully to the beef.
Vegetable Boost: For a nutrition upgrade, consider adding broccoli or bell peppers in the last 30 minutes of cooking to enhance your Slow Cooker Mongolian Beef with vibrant greens.
Flavor Infusion: Stir the beef halfway through the cooking time; this helps evenly distribute flavors and ensures no piece is left unseasoned.
Storage Tip: Store any leftover Slow Cooker Mongolian Beef in an airtight container in the fridge for up to 3 days or freeze for up to 2 months to enjoy later.

What to Serve with Slow Cooker Mongolian Beef?

Elevate your dining experience with these delicious accompaniments that perfectly complement the rich, savory flavors of Mongolian Beef.

Steamed Jasmine Rice: The fluffy grains soak up the luscious sauce, creating a perfect harmony of flavors in every bite. Nothing beats the classic pairing of rice with a savory dish.
Garlic Green Beans: A bright and crunchy side that balances the richness of the beef, adding a fresh note to your plate. Tossed in a bit of sesame oil, they mirror the dish's flavorful profile.
Crispy Egg Rolls: A delightful texture contrast, these crispy bites are perfect for dipping into soy sauce or sweet and sour sauce, enhancing your comforting meal. They offer a fun finger food element to the dinner experience.
Refreshing Cucumber Salad: The coolness of sliced cucumbers with a touch of vinegar cuts through the richness of the beef. This adds a refreshing crunch that brightens the palate.
Stir-Fried Broccoli: Rich in nutrients and a wonderful addition! The slight bitterness of the broccoli pairs well with the sweet and savory notes of the Mongolian Beef, adding color and crunch.
Toasted Sesame Noodles: A slurp-worthy side that brings extra umami flavor to your table. Tossed with sesame oil, soy sauce, and scallions, these noodles are sure to please!
Chilled Sake or Light Beer: A few sips of chilled sake or a light beer can enhance the savory experience while cleansing the palate between bites. The refreshing pairing complements the slow-cooked richness beautifully.

These delicious options will not only enhance your Slow Cooker Mongolian Beef but transform your meal into a delightful culinary adventure!

Make Ahead Options

These Slow Cooker Mongolian Beef preparations are perfect for busy home cooks looking to ease their meal planning! You can slice and season the flank steak, then coat it with cornstarch up to 24 hours in advance, allowing the flavors to meld together. Additionally, prepare the garlic-ginger mixture and store it in an airtight container in the refrigerator for maximum freshness. Once you're ready to start cooking, simply combine all components in the slow cooker and let the magic happen! This way, you'll return home to a delightful aroma and a delicious meal that feels just as fresh and flavorful as if you made it from scratch that day.

Slow Cooker Mongolian Beef Variations

Feel free to get creative with this dish and make it your own with these delightful twists!

Dairy-Free: Replace any butter with olive oil or omit dairy altogether for a lighter dish.
Vegetable Boost: Toss in chopped broccoli or bell peppers in the last 30 minutes of cooking for added nutrition and color.
Gluten-Free: Use tamari instead of soy sauce to keep the flavors intact while making the dish gluten-free.
Sweet Heat: Add a splash of sriracha or crushed red pepper flakes for a spicy kick that beautifully contrasts the sweetness.
Herb Infusion: Mix in fresh herbs like basil or cilantro before serving for a fresh and fragrant note.
Slow Cooker BBQ: Swap the soy sauce for your favorite barbecue sauce to transform the dish into a smoky delight.
Nutrient-Rich: Incorporate chopped carrots or snap peas for a delightful crunch and extra vitamins.
Cranberry Twist: Blend in a spoonful of cranberry sauce for a unique sweet-tart flair that pairs well with the beef.

With these variations, you can easily switch up flavors and textures while keeping the comforting essence of Slow Cooker Mongolian Beef intact!

How to Store and Freeze Slow Cooker Mongolian Beef

Fridge: Store leftovers in an airtight container for up to 3 days to maintain freshness and flavor.

Freezer: For longer storage, freeze portions in airtight containers for up to 2 months. Thaw overnight in the fridge before reheating.

Reheating: Reheat on the stovetop over low heat, adding a splash of water or broth to regain moisture. Alternatively, use a microwave, stirring halfway through to ensure even heating.

Room Temperature: Do not leave leftovers at room temperature for more than 2 hours to ensure food safety.

Slow Cooker Mongolian Beef Recipe FAQs

What type of beef is best for Slow Cooker Mongolian Beef?
Absolutely! Flank steak is the ideal choice for this recipe due to its tenderness and juicy flavor. If you wish to switch it up, skirt steak or sirloin can be great alternatives that will still yield delicious results.

How long can I store leftover Slow Cooker Mongolian Beef?
Store your leftovers in an airtight container in the fridge for up to 3 days. If you want to enjoy it later, freezing is an excellent option-just make sure it's in an airtight container to prevent freezer burn.

Can I freeze Slow Cooker Mongolian Beef?
Yes! To freeze, portion the beef into airtight containers, ensuring there's little air inside. It can be kept frozen for up to 2 months. When you're ready to enjoy it, thaw it overnight in the fridge before reheating for the best texture and flavor.

What if I add too much soy sauce or brown sugar?
Very good question! If you find the sauce overly salty or sweet, you can balance it out by adding a splash of water or broth while cooking. Also, incorporating more beef or vegetables can dilute the sauce, creating a more harmonious flavor profile.

Are there any dietary considerations for this dish?
Definitely! When making Slow Cooker Mongolian Beef, ensure to check for soy sauce alternatives if you're dealing with gluten sensitivities. For unique dietary needs, consider using low-sodium soy sauce to control the salt content. Always taste the sauce while cooking to best match your dietary preferences.

Can I make this recipe in advance?
The more the merrier! Yes, you can prepare the beef and sauce a day in advance. Just combine them in the slow cooker and refrigerate overnight. In the morning, set your slow cooker, and you'll come home to a wonderful meal waiting for you!