Stepping into my kitchen, the sizzle of flank steak hitting a hot wok immediately transports me to bustling Asian markets filled with delightful aromas. This Easy Mongolian Beef Stir Fry Recipe is a game-changer for busy weeknights, delivering restaurant-quality flavor without the wait. In just 30 minutes, you can create a dish that’s both quick to prepare and wonderfully satisfying. With tender strips of beef enveloped in a glossy sauce, each bite brings a perfect balance of savory and sweet that could rival any takeout. Plus, the minimal cleanup leaves you with more time to unwind after a hectic day. How does a weeknight dinner this delectable sound? Let’s dive into this flavor-packed adventure!

Why is this stir fry a must-try?
Quick Preparation: This Easy Mongolian Beef Stir Fry whips up in just 30 minutes, allowing you to enjoy a satisfying dinner without the long wait.
Savory Sweet Delight: The glossy sauce, rich in savory and sweet flavors, perfectly coats tender slices of flank steak, making each bite a culinary delight.
Minimal Cleanup: With a single wok required, cleanup is a breeze, letting you relax after cooking rather than spending time washing up.
Flavor Versatility: Feel free to mix and match ingredients! Whether served with steamed jasmine rice or crispy noodles, this dish allows for endless creativity.
Impressive Presentation: The vibrant colors of green onions and the glossy sauce make this dish visually stunning, sure to wow your family and guests!
Similar Recipes: If you love this stir fry, check out my Savory Cabbage Beef or Stir Fry Teriyaki for more quick and tasty options.
Easy Mongolian Beef Stir Fry Ingredients
For the Beef Marinade
- Flank Steak – Tender and quick-cooking; slice against the grain for the best texture.
- Baking Soda – Acts as a tenderizing agent; it helps soften the meat for juicy bites.
- Cornstarch – Used for coating; it creates a crispy exterior on the beef that contrasts deliciously with the tender meat.
- Shaoxing Wine – A flavor enhancer; if unavailable, dry sherry makes a decent substitute.
- Soy Sauce – Provides umami flavor; opt for low-sodium to cut back on salt.
- White Pepper – Adds a mild spice; feel free to replace with black pepper if you prefer.
For the Sauce
- Brown Sugar – Balances sweetness in the dish; light or dark can be used based on your taste preference.
- Beef Broth – Adds depth to the sauce; substitute with vegetable broth for a vegetarian option.
- Dark Soy Sauce – Offers a richer flavor and color; you can use extra regular soy sauce if you run out.
- Oyster Sauce – Provides a savory element; you can omit it for a vegetarian version, adjusting with more soy sauce.
- Sesame Oil – Contributes aroma; using toasted sesame oil deepens the flavor even more.
For the Aromatics
- Yellow Onion – Sautéed until fragrant, it enhances the overall flavor profile.
- Ginger – Adds warmth and spice; adjust quantity based on your preference.
- Garlic – Essential for flavor; fresh garlic is recommended for the best taste.
- Dried Chili Peppers – Provides heat; adjust the quantity based on your spice tolerance.
- Green Onions – A fresh garnish that adds crunch and a pop of color to the dish.
This Easy Mongolian Beef Stir Fry Recipe is sure to bring excitement and flavor to your weeknight dinner rotation!
Step‑by‑Step Instructions for Easy Mongolian Beef Stir Fry Recipe
Step 1: Marinate the Beef
In a mixing bowl, combine sliced flank steak with baking soda, cornstarch, Shaoxing wine, water, soy sauce, and white pepper. Make sure the beef is evenly coated, then let it marinate for 30 minutes at room temperature. This step not only tenderizes the meat but also infuses it with layered flavors, setting the foundation for your Easy Mongolian Beef Stir Fry.
Step 2: Prepare the Sauce
While the beef is marinating, whisk together brown sugar, beef broth, regular soy sauce, dark soy sauce, oyster sauce, and sesame oil in a separate bowl. Stir until the sugar dissolves completely, creating a smooth sauce. This mixture will add a rich, savory-sweet depth to your Easy Mongolian Beef Stir Fry, so set it aside for later use.
Step 3: Coat the Beef
After marinating, remove the flank steak and coat it with cornstarch, ensuring each piece is well covered while shaking off any excess. This coating will create that irresistible crispy exterior during cooking. Prepare your wok or skillet for the next step by having it ready over medium-high heat.
Step 4: Sear the Beef
Heat vegetable oil in your preheated wok over medium-high heat until shimmering. Add the coated beef in batches, searing for about 1 minute on each side until browned but still tender. Be careful not to overcrowd the pan, as this can lead to steaming rather than frying. Once cooked, transfer the beef to a plate and set aside.
Step 5: Sauté the Aromatics
In the same hot wok, add a little more vegetable oil if needed, and toss in the yellow onion, ginger, garlic, and dried chili peppers. Sauté these ingredients for about 1 minute until they become fragrant and aromatic, making sure not to burn them. This step builds the flavor profile of your Easy Mongolian Beef Stir Fry beautifully.
Step 6: Combine the Sauce
Pour the prepared sauce into the wok, stirring to combine with the sautéed aromatics. Bring the mixture to a gentle simmer over medium heat, then stir in a cornstarch slurry (if desired) to thicken the sauce. Watch as it transforms into a glossy coating, ready to envelop your beef in delightful flavor.
Step 7: Finish the Dish
Return the seared beef to the wok along with chopped green onions. Quickly toss everything together for about 30 seconds, ensuring the beef is heated through and evenly coated with the savory sauce. This last step brings together all the elements of your Easy Mongolian Beef Stir Fry, creating a mouthwatering dish you’ll be proud to serve.

Easy Mongolian Beef Stir Fry Variations
Feel free to get creative and make this Easy Mongolian Beef Stir Fry your own with these delightful variations!
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Protein Swap: Use sirloin or skirt steak instead of flank steak for a different texture and flavor profile; both are delicious options.
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Vegetarian Delight: Opt for tofu or seitan as a protein alternative. Both create a hearty and satisfying vegetarian version without losing any flavor!
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Serving Accompaniments: Serve over crispy fried noodles or a refresher cucumber salad; they contrast beautifully with the savory stir fry while adding a fresh crunch.
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Bold Heat: Add more dried chili peppers or a splash of sriracha for an extra kick. Adjust the spice level to your family’s taste preferences for a personalized touch.
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Flavor Boost: Incorporate ingredients like bell peppers or snap peas to the wok while stir-frying. This not only enhances the flavor but adds a splash of color to your dish.
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Healthy Twist: Serve over cauliflower rice or quinoa to cut down on carbs while adding nutritious elements to your meal. It’s an excellent way to enjoy the vibrant flavors without guilt.
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Noodle Fanatics: Consider tossing the beef with udon or rice noodles instead of serving it as a separate dish. This transforms your stir fry into a filling noodle bowl that’s hard to resist!
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Family-style Serving: For a larger crowd, double the recipe and serve it as a shared meal at the table, just like at your favorite Asian restaurant. It’s a perfect way to bring everyone together!
The beauty of this dish lies in its versatility, just like my beloved Beef Lasagna Cheesy that’s customizable for every family member. Interested in more quick stir fries? Don’t forget to check out my Stir Fry Teriyaki for another easy weeknight hero!
Make Ahead Options
These Easy Mongolian Beef Stir Fry preparations are perfect for meal prep enthusiasts looking to save time during busy weeknights! You can marinate the flank steak and store it in the refrigerator up to 24 hours in advance, allowing the flavors to penetrate beautifully. Additionally, the sauce can be mixed ahead of time and kept in the fridge for up to 3 days; just remember to whisk it again before using, as the ingredients may settle. When you’re ready to cook, simply follow the remaining steps of coating the beef with cornstarch and stir-frying, and you’ll have a quick, delicious meal that tastes just as fresh and flavorful as if you made it that same day!
How to Store and Freeze Easy Mongolian Beef Stir Fry
Fridge: Store leftovers in an airtight container in the fridge for up to 3 days. Ensure it’s completely cooled to maintain optimal flavor and texture.
Freezer: For longer storage, freeze the stir fry in a freezer-safe container for up to 2 months. Be sure to leave some space at the top for expansion.
Reheating: When ready to enjoy again, thaw in the fridge overnight and reheat in a wok over medium heat, adding a splash of water or broth to keep the sauce smooth.
Serving Tip: For best results, serve the reheated Easy Mongolian Beef Stir Fry immediately with fresh rice or noodles for a comforting meal.
Expert Tips for Easy Mongolian Beef Stir Fry
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Slice Against the Grain: To achieve maximum tenderness, slice the flank steak against the grain. This simple technique transforms the texture of the meat, making your Easy Mongolian Beef Stir Fry melt in your mouth.
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Marination Magic: Allow the beef to marinate for a full 30 minutes; this not only tenderizes but also infuses deep flavors. Skimping on time can leave the meat less flavorful than desired.
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Don’t Overcrowd: Cook the beef in small batches. Overcrowding the pan can lead to steaming instead of searing, which affects that desired crispy texture.
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Sauce Consistency: If your sauce is too thick, add a splash of beef broth or water while reheating leftovers to maintain a silky consistency that clings perfectly to the beef.
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Spice Adjustments: Tailor the heat of your Easy Mongolian Beef Stir Fry by adjusting the quantity of dried chili peppers. Start with fewer if you’re uncertain, and add more if you prefer a kick!
What to Serve with Easy Mongolian Beef Stir Fry
Stepping away from the hustle of cooking, let’s create a full dining experience that complements the vibrant flavors of your meal.
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Steamed Jasmine Rice: A classic choice, this fluffy rice absorbs the tangy sauce beautifully, making each bite comforting and satisfying.
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Stir-Fried Vegetables: Crisp-tender veggies like bell peppers, broccoli, and snap peas add color and texture while enhancing the nutritional value of your dinner.
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Crispy Fried Noodles: These provide a delightful crunch and make for a fun contrast against the tender beef, creating an enticing combination in every forkful.
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Cucumber Salad: Light and refreshing, this salad with a tangy dressing acts as a great palate cleanser, balancing the rich flavors of the stir fry.
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Mango Slices: Sweet and juicy, fresh mango slices can bring a tropical sweetness to the table, harmonizing beautifully with the savory profile of the beef.
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Sparkling Water with Lime: Refreshing and bubbly, this drink enhances the meal experience without overpowering the vibrant flavors of your Easy Mongolian Beef Stir Fry.
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Chocolate Mousse: For dessert, this indulgent treat offers a rich, creamy finish that’s sure to please everyone after a satisfying meal.

Easy Mongolian Beef Stir Fry Recipe FAQs
How do I choose the right flank steak for this recipe?
Absolutely! Look for flank steak with a bright red color and minimal dark spots. The meat should be firm to the touch but slightly tender. Avoid any packaging that shows signs of excess moisture, as this can indicate a loss of quality. Fresh cuts will yield the best flavor and texture in your Easy Mongolian Beef Stir Fry.
What is the best way to store leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. Make sure to let the dish cool down completely before sealing to preserve freshness. If you wish to enjoy it later, freezing is a great option!
How do I freeze Easy Mongolian Beef Stir Fry?
To freeze, allow the stir fry to cool completely. Then, scoop it into a freezer-safe container, leaving some space at the top for expansion. Seal it tightly and label with the date. This dish can be frozen for up to 2 months. When you’re ready to eat, thaw in the fridge overnight, and reheat gently in a wok over medium heat, adding a splash of broth or water to restore the sauce’s consistency.
What can I do if my beef is tough after cooking?
Very common! If your beef turns out tough, it may be due to cutting it against the grain or not marinating long enough. Be sure to slice the steak thin and against the grain to break down the muscle fibers. Marinating for at least 30 minutes helps tenderize it. Additionally, if the beef is overcooked, return it to the pan briefly with a bit of broth to help hydrate it.
Can I make a vegetarian version of this dish?
Yes, absolutely! You can substitute the flank steak with firm tofu or seitan, both of which provide a lovely texture when marinated and cooked. Follow the same marination steps for flavor. Just remember to adjust the cooking time, as the plant-based proteins may cook quicker!

Savory Easy Mongolian Beef Stir Fry Recipe in 30 Minutes
Ingredients
Equipment
Method
- In a mixing bowl, combine sliced flank steak with baking soda, cornstarch, Shaoxing wine, water, soy sauce, and white pepper. Let it marinate for 30 minutes at room temperature.
- While the beef is marinating, whisk together brown sugar, beef broth, regular soy sauce, dark soy sauce, oyster sauce, and sesame oil in a separate bowl.
- After marinating, remove the flank steak and coat it with cornstarch.
- Heat vegetable oil in your preheated wok over medium-high heat until shimmering. Add the coated beef in batches, searing for about 1 minute on each side.
- In the same hot wok, toss in the yellow onion, ginger, garlic, and dried chili peppers. Sauté for about 1 minute until fragrant.
- Pour the prepared sauce into the wok, stirring to combine with the sautéed aromatics. Bring the mixture to a gentle simmer.
- Return the seared beef to the wok along with chopped green onions. Quickly toss everything together for about 30 seconds.

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