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Closeup view of beef and broccoli lo mein in a white bowl with chopsticks.

Beef and Broccoli Lo Mein

This easy and delicious Beef and Broccoli Lo Mein is a quick and simple meal prepared in less than 30 minutes!
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 4


For the sauce:

  • cup soy sauce low sodium
  • 2 tablespoons oyster sauce
  • 1 teaspoon sriracha
  • 2 tablespoons brown sugar light or dark
  • 1 tablespoon sesame oil
  • ¼ teaspoon ground ginger
  • 2 teaspoons minced fresh garlic

For the Lo Mein:  

  • 8 ounces lo mein or spaghetti noodles cooked according to package directions and drained
  • 1 pound flank steak sliced into thin strips across the grain
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • 2 tablespoons sesame oil
  • 2 ½ cups fresh broccoli florets about 1 head, cut into bite-size pieces
  • 1 cup julienned carrots or shredded
  • 1 large red bell pepper cored, seeded and thinly sliced
  • ½ teaspoon sesame seeds optional garnish


  • Begin cooking noodles according to package directions.  While noodles are cooking, place sauce ingredients (soy sauce, oyster sauce, sriracha, brown sugar, sesame oil, ground ginger and garlic) in a small bowl and whisk to combine.  Set aside.
  • Season beef strips with salt and pepper.  Heat 2 tablespoons of sesame oil in a large skillet or sauté pan over medium high heat.  Add beef strips and cook 5 to 6 minutes (stirring frequently), or until done and no longer pink.  Remove beef from skillet with tongs or a slotted spoon (leave juices in pan) and place on a plate.  Set aside.
  • Add broccoli, carrots and red peppers to the same skillet and cook for 5 to 6 minutes (stirring frequently), or until tender.
  • Return cooked beef to skillet.  Stir in cooked noodles and sauce to evenly coat.  Cook, stirring frequently, until heated through (1 to 2 minutes).
  • Sprinkle with sesame seeds when serving, if desired.


Olive oil can be substituted for sesame oil.