Mongolian Beef Stir-Fry Recipe
Introduction
Mongolian Beef Stir-Fry is a perfect blend of savory, sweet, and a hint of spice that will delight your taste buds. This quick and easy dish is ideal for busy weeknights when you want something delicious without spending hours in the kitchen. With just a few simple ingredients and steps, you can create a restaurant-quality meal that will impress everyone at your table.

Ingredients
- 1 pound flank steak, thinly sliced against the grain
- 1/4 cup cornstarch
- 2 tablespoons vegetable oil
- 1/2 cup soy sauce
- 1/2 cup brown sugar
- 1 tablespoon minced garlic
- 1 tablespoon minced ginger
- 1/4 teaspoon red pepper flakes (optional)
- 3 green onions, chopped
Instructions
- Step 1: Toss the sliced flank steak with cornstarch in a large bowl until evenly coated. Let it sit for about 10 minutes to help the beef achieve a crispy texture when cooked.
- Step 2: Heat the vegetable oil in a large skillet or wok over medium-high heat. Add the beef in a single layer and cook for 2-3 minutes on each side until browned, working in batches if needed to avoid overcrowding. Remove the beef and set aside.
- Step 3: In the same skillet, add soy sauce, brown sugar, minced garlic, minced ginger, and red pepper flakes if using. Stir and bring to a simmer. Cook for 2-3 minutes until the sauce thickens slightly.
- Step 4: Return the beef to the skillet and toss it in the sauce until every piece is coated. Cook for another 2-3 minutes until heated through and flavors meld.
- Step 5: Stir in the chopped green onions just before serving. Serve hot over steamed rice or noodles for a complete meal.
Tips & Variations
- Slice the flank steak thinly against the grain for maximum tenderness.
- Let the beef sit in cornstarch for at least 10 minutes to create a crispy exterior.
- Avoid overcrowding the pan when cooking the beef; cook in batches if necessary.
- Adjust sweetness by varying the amount of brown sugar or use a sugar substitute like stevia for a healthier option.
- Add vegetables like bell peppers, broccoli, or snap peas for extra color and nutrition.
- Increase red pepper flakes or add sliced jalapeños for a spicier version.
- Substitute tamari for soy sauce to make this dish gluten-free.
- Try chicken or tofu instead of beef for a different protein option.
Storage
Store leftover Mongolian Beef Stir-Fry in an airtight container in the refrigerator for up to three days. Reheat gently in a skillet over medium heat or in the microwave until warmed through. For best texture, avoid overcooking during reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different cut of beef for this recipe?
Yes, you can use sirloin or ribeye instead of flank steak. Just be sure to slice the meat thinly against the grain to keep it tender.
How can I make Mongolian Beef Stir-Fry spicier?
Increase the red pepper flakes in the sauce or add sliced jalapeños for extra heat. You can also toss in a dash of sriracha to the sauce for a fiery kick.
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Mongolian Beef Stir-Fry Recipe
- Total Time: 20 minutes
- Yield: 4 servings 1x
Description
Mongolian Beef Stir-Fry is a quick and flavorful dish featuring tender flank steak coated in crispy cornstarch and cooked in a sweet-savory soy sauce glaze. Perfect for busy weeknights, this recipe combines aromatic garlic and ginger with optional spicy red pepper flakes, garnished with fresh green onions. Serve it over steamed rice or noodles for a satisfying meal that delivers bold Asian flavors in just 20 minutes.
Ingredients
Beef and Coating
- 1 pound flank steak, thinly sliced against the grain
- 1/4 cup cornstarch
Sauce and Seasonings
- 1/2 cup soy sauce
- 1/2 cup brown sugar
- 1 tablespoon minced garlic
- 1 tablespoon minced ginger
- 1/4 teaspoon red pepper flakes (optional)
Cooking Oil and Garnish
- 2 tablespoons vegetable oil
- 3 green onions, chopped
Instructions
- Prepare the Beef: Slice the flank steak thinly against the grain for maximum tenderness. Toss the sliced beef in cornstarch until evenly coated and let it rest for about 10 minutes to absorb the coating, which helps create a crispy texture when cooked.
- Cook the Beef: Heat vegetable oil in a large skillet or wok over medium-high heat. Add the beef in a single layer and cook for 2-3 minutes on each side until nicely browned. Avoid overcrowding; cook in batches if necessary. Remove the cooked beef and set aside.
- Make the Sauce: In the same skillet, combine soy sauce, brown sugar, minced garlic, minced ginger, and optional red pepper flakes. Stir well and bring to a simmer. Let it cook for 2-3 minutes until the sauce thickens slightly.
- Combine and Heat: Return the cooked beef to the skillet and toss to coat thoroughly with the sauce. Cook for an additional 2-3 minutes until the beef is heated through and flavors meld.
- Add Green Onions: Stir in the chopped green onions just before serving to add freshness and a pop of color. Serve the stir-fry hot over steamed rice or noodles for a complete meal experience.
Notes
- For a healthier version, substitute brown sugar with a sugar alternative like stevia or erythritol.
- Add vegetables such as bell peppers, broccoli, or snap peas to increase nutrition and add vibrant color.
- Increase red pepper flakes or add sliced jalapeños for a spicier dish.
- Use tamari instead of soy sauce to make this recipe gluten-free without losing flavor.
- Cook the beef in batches to prevent overcrowding and ensure a good sear.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Category: Main Dish
- Method: Stovetop
- Cuisine: Mongolian
Keywords: Mongolian beef, stir-fry, quick dinner, beef recipe, Asian cuisine, sweet and savory beef, flank steak stir-fry

