This easy Beef stir-fry is a quick, flavorful weeknight dinner. Tender slices of beef, fresh veggies, and a simple homemade sauce make this dish taste better than takeout.
Plus, you can use whatever vegetables you already have in your fridge or freezer. It’s flexible, budget‑friendly, and perfect for busy nights when you want something hearty without spending hours in the kitchen.
Ingredients
- Beef: I used beef sirloin. It’s affordable and tastes delicious. If you don’t have sirloin, you can use other cuts, like ribeye or flank.
- Veggies: I used a mix of fresh vegetables (including eggplant, bell peppers, and onions) and a frozen stir‑fry blend. Broccoli, bell peppers, onions, carrots, and sugar snap peas are all great options.
- Cornstarch: Helps tenderize the beef and it thickens the stir-fry sauce.
Scroll down to the recipe card to see the full list of ingredients and measurements.


What Cut of Beef Is Best For Beef Stir-Fry?
Flank steak is the most popular option for stir-fry. Sirloin is a great budget‑friendly option that stays tender with minimal effort. You can also use skirt steak, Denver steak, or even chuck steak (just trim off any tough connective tissue or silver skin so the beef cooks up tender).
Tips
Freeze the beef for 30 minutes before you slice it. It firms up and makes slicing it into thin strips easier.
Trim off connective tissue and large pieces of fat for the most tender bite.
Prep everything before you start cooking. Stir‑fries cook in a few minutes.
Use a high‑smoke‑point oil (canola or peanut oil) so nothing burns.
Make sure the pan is hot. The beef and veggies should sizzle as soon as they hit the skillet.
Variations & Substitutions
- Ditch the beef: Use chicken breast, chicken thighs, pork tenderloin, shrimp, or tofu.
- Make it spicy: Add sriracha, chili oil, or extra red pepper flakes.
- Low‑carb option: Serve the stir-fry with cauliflower rice or zucchini noodles.
- Meatless-Stir-fry: Double the vegetables or use only vegetables for a meatless stir-fry.

Storage Instructions
Store leftover beef stir-fry in an airtight container in the fridge for 3–4 days. The stir fry sauce will thicken as it cools, but it loosens up once reheated.
To reheat the beef stir fry, place it in a skillet. Heat over medium heat for 3–5 minutes. You can also microwave the stir-fry in 30‑second intervals until heated through. If the stir-fry sauce is too thick, add 1-2 teaspoons of water to loosen it up.
What to Serve with Beef Stir-Fry
Beef stir-fry is a versatile dish. You can serve it with:
- Jasmine rice or basmati rice
- Noodles (lo mein, rice noodles, udon, or ramen)
- Cauliflower rice for a lighter option
- Stir‑fried cabbage or bok choy
- Cucumber salad for something fresh and crunchy
Recommended Recipes:
Low-Carb Beef And Vegetable Skillet

Air Fryer Roast Beef

Air Fryer Whole Roast Chicken





