Mongolian Beef Noodles Stir-Fry (Print version)

Tender beef and chewy noodles meld with crisp veggies in savory-sweet Mongolian sauce for a fast, flavorful meal.

# What you'll need:

→ Beef

01 - 14 oz flank steak, thinly sliced against the grain
02 - 2 tablespoons cornstarch
03 - 1/2 teaspoon salt
04 - 1/4 teaspoon black pepper

→ Noodles

05 - 10 oz dried udon noodles or lo mein noodles

→ Vegetables

06 - 2 tablespoons vegetable oil
07 - 1 red bell pepper, thinly sliced
08 - 1 cup snow peas, trimmed
09 - 3 green onions, sliced (plus additional for garnish)
10 - 3 cloves garlic, minced
11 - 1 tablespoon fresh ginger, minced

→ Sauce

12 - 1/3 cup low-sodium soy sauce
13 - 2 tablespoons dark brown sugar, packed
14 - 2 tablespoons hoisin sauce
15 - 1 tablespoon oyster sauce
16 - 1/2 cup beef broth
17 - 1 teaspoon toasted sesame oil
18 - 1/2 teaspoon crushed red pepper flakes (optional)

# How to make it:

01 - Combine sliced flank steak with cornstarch, salt, and black pepper in a mixing bowl, ensuring each piece is evenly coated. Set aside.
02 - Boil noodles in a saucepan according to package instructions until tender. Drain thoroughly and set aside.
03 - Whisk together soy sauce, dark brown sugar, hoisin sauce, oyster sauce, beef broth, sesame oil, and red pepper flakes in a bowl until well combined.
04 - Heat 1 tablespoon vegetable oil in a large wok or skillet over medium-high heat. Add beef in a single layer and sear 1–2 minutes per side until browned. Transfer beef to a plate.
05 - Add remaining vegetable oil, sliced bell pepper, snow peas, and green onions to the wok. Stir-fry for 2–3 minutes until vegetables begin to soften.
06 - Stir in minced garlic and ginger, cooking 30 seconds until fragrant.
07 - Return browned beef to the pan. Pour in prepared sauce and bring the mixture to a gentle simmer.
08 - Add drained noodles to the wok. Toss thoroughly to coat all ingredients in sauce and heat through, about 2 minutes.
09 - Garnish with extra sliced green onions and serve immediately while hot.

# Expert suggestions:

01 -
  • Simple ingredients create huge flavor
  • Makes a generous main course for four
  • Ready to eat in just over half an hour
  • Perfect for using any noodles you have on hand
  • Customizable with your favorite veggies or protein swaps
02 -
  • High in protein and quick cooking
  • Easily packs in veggies for balanced nutrition
  • Freezes well if you keep the noodles and sauce separate
03 -
  • Use a super sharp knife and slice the beef very thinly across the grain This makes each piece melt in your mouth
  • Always rinse cooked noodles with cold water for the right chewy bite and to keep them from clumping
  • Do not overcrowd your wok or skillet when searing the beef or it will steam instead of getting that delicious sear
  • Let your leftovers cool completely before covering and refrigerating for freshest results
  • If you like extra glaze double the sauce and save half to spoon over each serving

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