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A bowl of Mongolian beef noodles with tender beef, stir-fried noodles, and a glossy sauce

Mongolian Beef Noodles


  • Author: Emma
  • Total Time: 40 min
  • Yield: 4 servings 1x

Description

Mongolian Beef Noodles is a delectable fusion dish that marries the savory flavors of traditional Mongolian beef with the satisfying texture of stir-fried noodles. This recipe features tender slices of beef, aromatic garlic and ginger, and a harmonious blend of sweet and savory sauces, all tossed with chewy noodles to create a restaurant-quality meal at home.


Ingredients

Scale

For the Beef Marinade:

  • 1 pound (450g) flank steak, thinly sliced against the grain
  • 2 tablespoons cornstarch
  • 1 tablespoon soy sauce
  • 1 tablespoon vegetable oil
  • 1 teaspoon garlic powder

For the Sauce:

  • ½ cup low-sodium soy sauce
  • ¼ cup brown sugar, packed
  • 1 tablespoon oyster sauce
  • 1 teaspoon sesame oil
  • ½ teaspoon red pepper flakes (optional, for heat)
  • ½ cup water

For the Stir-Fry:

 

  • 8 ounces (225g) lo mein noodles or spaghetti
  • 2 tablespoons vegetable oil, divided
  • 3 cloves garlic, minced
  • 1 teaspoon fresh ginger, grated
  • 1 red onion, thinly sliced
  • 1 cup bell peppers, thinly sliced (optional)
  • 3 green onions, chopped (white and green parts separated)
  • Sesame seeds for garnish

Instructions

  1. Marinate the Beef: In a medium bowl, combine sliced flank steak with cornstarch, soy sauce, vegetable oil, and garlic powder. Toss to coat evenly and let it marinate for 15 minutes.​
  2. Prepare the Sauce: In a small bowl, whisk together low-sodium soy sauce, brown sugar, oyster sauce, sesame oil, red pepper flakes (if using), and water until the sugar dissolves. Set aside.​
  3. Cook the Noodles: Bring a large pot of water to a boil. Cook the noodles according to package instructions until al dente. Drain and rinse under cold water to stop cooking. Toss with a teaspoon of sesame oil to prevent sticking.​
  4. Sear the Beef: Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the marinated beef in a single layer and sear for 1-2 minutes per side until browned. Cook in batches if necessary to avoid overcrowding. Remove beef from the skillet and set aside.​
  5. Sauté Aromatics: In the same skillet, add the remaining tablespoon of vegetable oil. Sauté minced garlic, grated ginger, and the white parts of the green onions for about 30 seconds until fragrant.​
  6. Cook Vegetables: Add sliced red onion and bell peppers to the skillet. Stir-fry for 2-3 minutes until they begin to soften.​
  7. Combine Ingredients: Return the seared beef to the skillet. Pour in the prepared sauce and bring to a simmer. Let it cook for 2 minutes to thicken slightly.​
  8. Add Noodles: Add the cooked noodles to the skillet, tossing gently to combine and ensure the noodles are evenly coated with the sauce. Cook for an additional 2 minutes until everything is heated through.​
  9. Garnish and Serve: Sprinkle the dish with sesame seeds and the green parts of the green onions. Serve hot.

Notes

  • Vegetable Variations: Feel free to add other vegetables like broccoli, snow peas, or carrots for added nutrition and color.​
  • Noodle Alternatives: If lo mein noodles are unavailable, spaghetti or linguine can be used as substitutes.​
  • Spice Level: Adjust the red pepper flakes to your preferred heat level or omit them for a milder dish.​
  • Tenderizing the Beef: Slicing the beef against the grain helps in making it more tender.
  • Prep Time: 20 min
  • Cook Time: 20 min
  • Method: Stir-Fry
  • Cuisine: Asian Fusion

Nutrition

  • Serving Size: Approximately 1¼ cups
  • Calories: 540
  • Sugar: 12 g
  • Sodium: 2027 mg
  • Fat: 17 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 13 g
  • Trans Fat: 0 g
  • Carbohydrates: 91 g
  • Fiber: 11 g
  • Protein: 38 g
  • Cholesterol: 73 mg