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skillet of beef lo mein garnished with scallions and sesame seeds
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5 from 4 votes

Beef Lo Mein

Beef Lo Mein is a delicious dinner recipe that has the most perfect sauce and tender steak. Your family will love this so much more than takeout.
Prep Time20 mins
Cook Time25 mins
Marinating1 hr
Total Time1 hr 45 mins
Course: Main Course
Cuisine: Chinese
Keyword: beef recipe, dinner recipe
Servings: 5 servings
Calories: 527kcal
Author: Lisa Longley


  • 1 pound flank steak cut thin
  • 3 tablespoons sesame oil + 1 teaspoon (divided)
  • 1/2 cup soy sauce divided
  • 1/3 cup brown sugar divided
  • 3 tablespoons oyster sauce (read about substitutions)
  • 2 - 3 tablespoons chile paste (depending on how spicy you want it)
  • 2 teaspoons corn starch
  • 8 ounces lo mein noodles
  • 1 red bell pepper sliced into thin strips
  • 8 ounces white mushrooms sliced
  • 2 carrots cut into matchstick pieces
  • 2 cups broccoli florets
  • 1 cup snow peas
  • 8 ounces water chestnuts drained
  • scallions diced for garnish
  • sesame seeds for garnish


  • In a small measuring cup, mix together 3 tablespoons reduced sodium soy sauce, 2 tablespoons brown sugar, 1 tablespoon oyster stauce, and 1 tablespoon chile paste. Add the sauce and the flank steak to a reasuable container and marinate for 2 to 24 hours. (It is great to do this overnight to make this a quick meal the next day. Learn why marinating flank steak is so important.)
  • Heat a large pot of water until it comes to a roaring boil. Season with salt. Cook the noodles according to package instructions. Drain the noodles, drizzle with 1 teaspoon sesame oil, and cover to keep warm.
  • In a small bowl, whisk together 1/3 cup reduced sodium soy sauce, 1/4 cup brown sugar, 2 tablespoons oyster stauce, 1-2 tablespoons chile paste, and 2 teaspoons cornstarch. Set aside.
  • Heat 2 tablespoons of sesame oil in a large skilet. Add the marinated flank steak and the sauce to the skillet. Cook for 6 to 8 minutes, until cooked through. Remove from the pan and set aside.
  • Add 1 tablespoon of sesame oil to the skillet. Add the vegetables and cook until tender, about 5 to 7 minutes. Add the sauce, noodles, and beef to the skillet and stir to combine. Cook for an additional minute or two to allow the flavors to combine.
  • Serve and enjoy.



Serving: 2cups | Calories: 527kcal | Carbohydrates: 75g | Protein: 32g | Fat: 14g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 5g | Trans Fat: 9g | Cholesterol: 30mg | Sodium: 2450mg | Potassium: 815mg | Fiber: 5g | Sugar: 23g