Name: Beef and Broccoli Lo Mein
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Ingredients: ⅓ 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; 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)

Jump to Recipe

Skip the takeout and make this easy Beef and Broccoli Lo Mein in a simple homemade sauce that’s bursting with flavor. It’s a dinner the whole family will love that’s on the table in under 30 minutes!

Front closeup view of a white bowl of beef and broccoli lo mein with chopsticks.

It doesn’t get much easier than this when it comes to getting dinner on the table in a hurry. This beef lo mein also reheats well for delicious leftovers… a win-win situation!

If you begin heating the water for the noodles as soon as you start the prep work, they should be done right around the same time as the beef and broccoli mixture.

Ingredients Notes

Overhead view of ingredients for beef and broccoli lo mein with overlay text.

Beef – flank steak sliced into thin strips across the grain. A helpful tip is to place the beef in your freezer about 30 minutes before slicing. This firms up the meat a little, making it easier to slice.
Broccoli – fresh florets cut into bite-size pieces.
Bell pepper – I use red bell pepper, but another color can certainly be used.
Noodles – lo mein noodles or spaghetti noodles can be used (both are delicious!).
Carrots – julienned or shredded.
Garlic
Brown sugar – light or dark brown sugar can be used.
Salt and black pepper – for seasoning the beef. Feel free to adjust the amounts to your personal preference!
Ground ginger
Oyster sauce – found on the Asian aisle (typically near the soy sauce).
Soy sauce – I use low sodium.
Sriracha – hot chili sauce that is also found on the Asian aisle
Sesame oil – I’ve found sesame oil beside the other oils on the baking aisle and also on the Asian aisle. Olive oil can be substituted for sesame oil.
Sesame seeds – optional garnish.

How to Prepare

Following is a very brief overview of how to prepare – please see the recipe card for full detailed instructions.

Preparing sauce and seasoning flank steak strips for beef lo mein.

Begin cooking noodles according to package directions. Pour sauce ingredients in a small bowl and whisk to combine. Set aside.
Season beef strips with salt and pepper.

Cooked beef strips in a pan and transferred to a white plate.

In a large skillet or sauté pan (I have been enjoying this all-purpose pan) , cook beef strips in sesame oil until done and no longer pink.
Using tongs or a slotted spoon, transfer to a plate, leaving juices in pan.

Vegetables in a skillet before and after beef, noodles and sauce are added for lo mein.

Add broccoli, carrots and red bell pepper to the same pan and cook until tender.
Return cooked beef to pan along with the cooked and drained noodles. Pour in the sauce and stir to combine. Cook an additional 1 to 2 minutes, or until heated through.

Watch the video above to see just HOW EASY it is to make lo mein at home!

Overhead view of beef and broccoli lo mein in a large skillet.

Enjoy!

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