Easy Beef Lo Mein Stir Fry is my go-to when I want real takeout-style noodles at home, but with crisp veggies and beef that stays tender. It’s savory, a little sweet, and the sauce clings to the noodles in that way that makes the bowl hard to put down.
What makes this version especially good is the soy-oyster sauce with a touch of hoisin and rice vinegar. It tastes bold and “finished,” and it doesn’t get dull once it’s tossed with noodles and vegetables.
I make this most often as a weeknight dinner when I want something fast but still satisfying. It’s also one of my favorite one-pan meals to serve when people are hungry and I don’t feel like juggling side dishes.
Why You’ll Love This Recipe
Weeknight friendly: It cooks fast, and it’s the kind of dinner that feels complete in one bowl.
That glossy sauce: The sauce turns thick and shiny in the pan and coats the noodles instead of sliding off.
Tender beef: A quick cornstarch toss and a hot sear keeps flank steak from getting chewy.
Vegetable heavy (in a good way): You still get plenty of noodles, but the cabbage and peppers keep it fresh and crunchy.
Easy to tweak: Swap the protein, use whatever stir-fry vegetables you have, and adjust the heat to your liking.
Ingredients You’ll Need
Noodles
- Lo mein noodles or spaghetti: Either works. I use spaghetti when that’s what I have, and it still gives you that slurpy noodle bite once it’s sauced.
- Sesame oil: This is mainly for tossing with the cooked noodles so they don’t stick. Toasted sesame oil has more flavor, so a little goes a long way.
Beef
- Flank steak: Slice it very thin and against the grain. That one step matters more than anything else for tenderness.
- Cornstarch: This is a quick “velveting” shortcut. It helps the beef brown and keeps the surface silky once the sauce hits.
- Soy sauce: Just enough to season the beef lightly. If your soy sauce is very salty, stick with low sodium in the sauce later.
- Neutral oil: Use something that can take high heat, like avocado, canola, or vegetable oil.
Vegetables
- Shredded cabbage: I like cabbage here because it stays crisp-tender and doesn’t turn mushy fast.
- Carrots: Julienned carrots cook quickly and add sweetness. Matchsticks from the store are totally fine.
- Red bell pepper: Good color, good crunch, and it plays nicely with the savory sauce.
- Green onions: I use them twice—some for stirring in at the end, and more on top if I have extra.
Sauce
- Low sodium soy sauce: This is the base flavor, so use one you like. Tamari works too if you need gluten-free.
- Oyster sauce: This gives that classic lo mein depth and a little sweetness. Use a gluten-free oyster sauce if needed.
- Hoisin sauce: Adds a darker sweetness and helps the sauce taste more “restaurant-y.” If you’re out, you can add a little extra brown sugar instead.
- Brown sugar: Just a small amount rounds out the salty sauces. Dark brown sugar is fine too.
- Rice vinegar: The little bit of tang keeps the sauce from tasting heavy.
- Garlic: Fresh is best here. Jar garlic works, but it’s a little sharper and less fragrant.
- Fresh ginger: I prefer fresh ginger for stir-fries. If you only have ground ginger, use it lightly.
- Beef broth or water: Broth gives a little more flavor, but water works and keeps it simple.
- Cornstarch: This is what tightens the sauce so it clings to the noodles. It also thickens more as it sits.
- Sriracha (optional): Add it if you want a gentle heat in the background. Chili garlic sauce works too.
- Black pepper: I like a little at the end. It makes the beef taste beefier.
Finish
- Toasted sesame seeds (optional): Nice for crunch, especially if you’re serving this right away while everything’s hot.
- Extra green onions (optional): A handful on top makes it taste fresher and gives a little bite.
Recipe Instructions
- Cook the noodles: Boil the noodles in well-salted water until just tender. Drain, rinse briefly so they don’t keep cooking, then toss with sesame oil and set aside.
- Whisk the sauce: In a bowl, whisk the soy sauce, oyster sauce, hoisin, brown sugar, rice vinegar, garlic, ginger, broth (or water), cornstarch, sriracha (if using), and black pepper until smooth.
- Coat the beef: Toss the sliced flank steak with cornstarch and soy sauce until it looks evenly coated.
- Sear the beef: Heat a wok or large skillet over high heat. Add the neutral oil, then sear the beef in a single layer until browned and just cooked through, working in batches if needed, then transfer to a plate.
- Stir-fry the vegetables: Add the cabbage, carrots, and bell pepper to the hot pan. Stir-fry until crisp-tender, about 2 to 3 minutes.
- Add the aromatics: Add the garlic and ginger and cook for about 30 seconds, just until fragrant.
- Simmer the sauce: Return the beef to the pan, pour in the sauce, and simmer for 1 to 2 minutes, stirring, until glossy and slightly thickened.
- Toss the noodles: Add the noodles and toss until everything is evenly coated and hot. Stir in the green onions, then serve with sesame seeds and extra green onions if you like.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Slice the beef thin and against the grain. This matters more than the cut of beef. If the steak is hard to slice, pop it in the freezer for 10 to 15 minutes so it firms up.
Keep the heat high. You want the beef and vegetables to sear and stay snappy. If your pan cools down, cook in batches so you don’t end up steaming everything.
Don’t overcook the noodles. Slightly under is better because they’ll heat again in the pan. Soft noodles can turn a little heavy once the sauce coats them.
Adjust the sauce at the end. If it tightens up too much, splash in a bit more broth or water and toss again. If you want it thicker, mix a little cornstarch with cold water and add it a bit at a time.
Add veggies you actually like. Broccoli, snap peas, mushrooms, or baby bok choy all work well. Just keep the pieces fairly thin so they cook fast.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Simple soup: A small bowl of egg drop soup or miso soup on the side is an easy add-on. I like it when I’m stretching this dinner for a hungrier table.
- Dumplings: Frozen potstickers or shumai are great alongside this. Crisp them up in a skillet and call it done.
- Extra greens: Quick sautéed bok choy or garlic green beans are nice if you want more vegetables. Keep them simply seasoned.
- Crunchy garnish: Top with sesame seeds and a little extra green onion. A drizzle of chili oil is good too if you like heat.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store leftovers covered in the fridge for up to 4 days. The noodles will soak up some sauce as they sit, which is normal.
For reheating, I usually use a skillet over medium heat with a small splash of water or broth to loosen things up. The microwave works too, but stir halfway through so the noodles heat evenly.
If you want to make this recipe ahead, prep the vegetables, slice the beef, and whisk the sauce, then keep everything separate in the fridge. When it’s time to eat, it comes together quickly.
You can also freeze individual portions, but the noodles soften a bit after thawing. Thaw in the fridge overnight and reheat with a splash of water, then toss well.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use spaghetti instead of lo mein noodles?
Yes. Spaghetti works surprisingly well here, especially if you cook it just to al dente and toss it with sesame oil right after draining.
What’s the best way to keep the beef tender?
Slice it very thin and against the grain, then don’t overcook it. I also like the quick cornstarch coating because it helps the beef stay soft once the sauce is added.
Can I make this gluten-free?
You can. Use tamari instead of soy sauce, swap in rice noodles, and make sure your oyster sauce and hoisin are gluten-free (brands vary a lot).
My sauce got too thick—what should I do?
Add a splash of broth or water and toss over heat for 30 seconds to loosen it. The sauce thickens fast in a hot pan and thickens even more as it cools.
What other vegetables can I add?
Broccoli florets, snap peas, mushrooms, and baby corn all work. I’d keep the cuts small so they cook quickly and stay crisp-tender.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Easy Beef Lo Mein Stir Fry
INGREDIENTS
Noodles
- 12 oz lo mein noodles or spaghetti
- 1 tbsp sesame oil.
Beef
- 1 lb flank steak thinly sliced against the grain
- 1 tbsp cornstarch
- 1 tbsp soy sauce
- 1 tbsp neutral oil.
Vegetables
- 2 cups shredded cabbage
- 1 cup julienned carrots
- 1 red bell pepper thinly sliced
- 4 green onions sliced.
Sauce
- 1 4 cup low sodium soy sauce
- 2 tbsp oyster sauce
- 1 tbsp hoisin sauce
- 1 tbsp brown sugar
- 1 tbsp rice vinegar
- 3 cloves garlic minced
- 2 tsp fresh ginger minced
- 1 2 cup beef broth or water
- 1 tsp cornstarch
- 1 tsp sriracha optional
- black pepper to taste.
Finish
- toasted sesame seeds optional
- extra green onions optional.
INSTRUCTIONS
Prep
- cook noodles in salted water until just tender then drain rinse briefly and toss with 1 tbsp sesame oil
- whisk sauce ingredients in a bowl until smooth
- toss sliced beef with 1 tbsp cornstarch and 1 tbsp soy sauce.
Stir Fry
- heat a wok or large skillet over high heat and add 1 tbsp neutral oil then sear beef in a single layer until browned and just cooked and transfer to a plate
- add cabbage carrots and bell pepper and stir fry until crisp tender
- add garlic and ginger and cook briefly until fragrant
- return beef to the pan and add sauce then simmer until glossy and slightly thickened
- add noodles and toss until evenly coated and heated through then stir in green onions and serve.
