Stir-fry cooking rewards preparation. Once the pan is hot, everything moves fast, so slice the beef, cut the vegetables, and mix the sauce before you start. Then the actual cooking takes about fifteen minutes.
This recipe is also flexible: use the vegetables you have, adjust the sauce to taste, and serve over rice or noodles.
Why This Recipe Works
High heat and a single layer are what make stir-fry beef tender instead of steamed. When beef is crowded into a cool pan, it releases water and simmers in its own juices. When it hits a hot, oiled pan in a single layer, it browns quickly and stays juicy inside. Searing in batches, if your pan is small, is worth the extra few minutes.
The sauce is kept simple on purpose. Soy sauce gives salt and depth, honey or brown sugar gives a little sweetness to balance it, garlic and ginger give warmth, and a touch of sesame oil at the end gives aroma. Cornstarch thickens the sauce just enough to coat the beef and vegetables, so nothing pools at the bottom of the pan.
What You Need
You will need one pound of flank steak or sirloin, sliced very thinly against the grain, two tablespoons of soy sauce, one tablespoon of cornstarch, and one tablespoon of neutral oil for the beef marinade. For the vegetables, you will need one bell pepper, sliced, one cup of broccoli florets, one large carrot, cut into thin coins or matchsticks, one small onion, sliced, and two cloves of garlic, minced, plus one teaspoon of grated fresh ginger.
For the sauce, you will need one-quarter cup of soy sauce, two tablespoons of water, one tablespoon of honey or brown sugar, one tablespoon of rice vinegar, one teaspoon of sesame oil, and one tablespoon of cornstarch mixed with two tablespoons of cold water. You will also need two tablespoons of neutral oil for cooking, and cooked rice or noodles for serving. Sliced green onions and sesame seeds make a simple, useful garnish.
How to Make One-Pan Beef and Vegetable Stir-Fry
Toss the sliced beef with two tablespoons of soy sauce and one tablespoon of cornstarch in a bowl. Let it sit while you prepare the vegetables and sauce, at least ten minutes. This light coating protects the beef during searing and helps the sauce cling later. Meanwhile, whisk all the sauce ingredients except the cornstarch slurry in a small bowl, and keep the slurry separate until the end.
Heat one tablespoon of oil in a large skillet or wok over high heat until it shimmers. Add half the beef in a single layer and sear for one to two minutes per side, until browned. Remove to a plate and repeat with the remaining beef, adding a little more oil if needed. Do not crowd the pan, or the beef will steam instead of sear.
Add the remaining oil to the same pan, then add the onion, carrot, and broccoli. Stir-fry for three to four minutes, until the vegetables are bright and just starting to soften. Add the bell pepper, garlic, and ginger and stir-fry for one more minute, until fragrant. The vegetables should still have bite at this stage, because they will cook a little more in the sauce.
Return the beef to the pan and pour in the sauce. Stir the cornstarch slurry once more, pour it in, and stir constantly for one to two minutes, until the sauce thickens and coats everything with a light gloss. Taste and adjust: a splash more soy for salt, a pinch of sugar for balance, or a dash of vinegar for brightness. Serve immediately over rice or noodles, topped with green onions and sesame seeds.
Recipe Card
One-Pan Beef and Vegetable Stir-Fry
Prep time: 15 minutes
Cook time: 15 minutes
Total time: 30 minutes
Servings: 4 servings
Course: Main Course
Cuisine: American
Keyword: one-pan beef and vegetable stir-fry, beef vegetable stir-fry, quick weeknight dinner
Ingredients
- 1 pound flank steak or sirloin, sliced very thinly against the grain
- 2 tablespoons soy sauce, for marinade
- 1 tablespoon cornstarch, for marinade
- 1 tablespoon neutral oil, for marinade cooking
- 1 bell pepper, sliced
- 1 cup broccoli florets
- 1 large carrot, cut into thin coins or matchsticks
- 1 small onion, sliced
- 2 cloves garlic, minced
- 1 teaspoon grated fresh ginger
- 1/4 cup soy sauce, for sauce
- 2 tablespoons water
- 1 tablespoon honey or brown sugar
- 1 tablespoon rice vinegar
- 1 teaspoon sesame oil
- 1 tablespoon cornstarch mixed with 2 tablespoons cold water
- 1 tablespoon neutral oil, for cooking vegetables
- Cooked rice or noodles, for serving
- Sliced green onions and sesame seeds, for garnish
Instructions
- Toss the sliced beef with 2 tablespoons soy sauce and 1 tablespoon cornstarch and let sit for at least 10 minutes.
- Whisk the sauce ingredients except the cornstarch slurry in a small bowl and set aside.
- Heat 1 tablespoon oil in a large skillet or wok over high heat until shimmering.
- Sear half the beef in a single layer for 1 to 2 minutes per side, remove to a plate, and repeat with the remaining beef.
- Add the remaining oil, then stir-fry the onion, carrot, and broccoli for 3 to 4 minutes.
- Add the bell pepper, garlic, and ginger and stir-fry for 1 more minute, until fragrant.
- Return the beef to the pan and pour in the sauce.
- Stir the cornstarch slurry, pour it in, and stir constantly for 1 to 2 minutes until the sauce thickens and coats everything.
- Taste, adjust seasoning, and serve immediately over rice or noodles with green onions and sesame seeds.
Tips for the Best Stir-Fry
Slice the beef as thinly as you can. Partially freezing the steak for 20 to 30 minutes firms it up and makes thin slicing much easier. Always slice against the grain, so the cooked beef is tender rather than chewy, even if the slices are not perfectly even.
Keep the pan hot and the vegetables moving, and stay at the stove once cooking starts.
Variations to Try
Swap in snap peas, green beans, mushrooms, or zucchini, adding denser vegetables first so everything finishes crisp-tender together.
For heat, add chili flakes or chili garlic sauce to the sauce. For a lower-sodium version, use low-sodium soy sauce.
Make-Ahead and Storage
Prep ahead for even faster cooking: slice the beef and vegetables and mix the sauce up to one day ahead, stored separately.
Leftovers keep for up to 3 days in the refrigerator. Reheat gently in a skillet with a splash of water. Stir-fry does not freeze well, as the vegetables lose their crisp texture.
Frequently Asked Questions
Why is my stir-fry beef tough?
Tough beef usually means slices that are too thick, cut with the grain, or overcooked in a crowded pan. Slice thinly against the grain, sear quickly over high heat in batches, and return the beef to the pan only at the end, just long enough to coat it in sauce.
Can I use a different cut of beef?
Yes. Flank steak and sirloin are reliable choices, but skirt steak also works if sliced thinly. Avoid stewing cuts, which need long, slow cooking to become tender and will stay tough in a quick stir-fry.
What if I do not have a wok?
A large, heavy skillet works very well. The key is a pan large enough to hold the beef in a single layer and heat that stays high. A small or thin pan cools quickly and steams the food, so use the largest skillet you have.
Can I make this gluten-free?
Yes, with one swap. Use tamari or a certified gluten-free soy sauce in place of regular soy sauce, in both the marinade and the sauce. Check your other sauce ingredients for gluten, and serve with rice instead of wheat noodles.
How do I keep the vegetables crisp?
Cut them evenly, keep the heat high, and do not overcook them. Vegetables should still have bite when the sauce goes in, because they will soften slightly as the sauce thickens. If you like them very crisp, shorten the first stir-fry step by one minute.
This one-pan beef and vegetable stir-fry is weeknight cooking at its most useful: quick, adaptable, and easy to clean up. Prep ahead, keep the pan hot, and dinner will be on the table in half an hour.
