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Quick Beef Stir-Fry

Quick Beef Stir-Fry

This beef stir-fry is a quick and easy dinner that's perfect for busy weeknights. Made with tender strips of beef, fresh vegetables, and a flavorful homemade sauce, it comes together in just 25 minutes using simple ingredients you may already have on hand. One of the best things about this recipe is its flexibility—you can easily swap in your favorite vegetables or use what you already have in the fridge.
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Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 4

Ingredients
  

  • 2 tbsp Vegetable oil or any neutral high-smoke-point oil
  • 1 lb Beef sirloin cut into 2-inch thin strips
  • 2 cups Broccoli florets cut small for even cooking
  • 1 medium Red bell pepper cut into matchsticks
  • 2 medium Carrots thinly sliced on the diagonal
  • 3 stalks Green onion chopped (whites and greens separated)
  • 3 cloves Garlic freshly minced
  • 3 tbsp Soy sauce low-sodium if preferred
  • 1 tbsp Sesame seeds toasted

Instructions
 

  • Gather and prep all ingredients before turning on the heat — stir-frying moves fast and there's no time to chop mid-cook.
    2. Heat vegetable oil in a large wok or skillet over medium-high heat until shimmering. Add the beef strips in a single layer and stir-fry until browned, about 3–4 minutes. Avoid overcrowding the pan so the beef sears rather than steams.
    3. Push the beef to one side of the wok. Add the broccoli, bell pepper, carrots, green onion whites, and garlic to the center. Stir-fry the vegetables for 2 minutes until slightly softened but still crisp.
    4. Toss the beef back into the vegetables. Pour in the soy sauce and sprinkle over the sesame seeds. Stir everything together and cook for another 2 minutes until the vegetables are just tender and coated in sauce.
    5. Serve hot over steamed rice or lo mein noodles. Garnish with the green onion tops and extra sesame seeds if desired.

Notes

 
  • Slice smarter: Pop the beef in the freezer for 15 minutes before slicing — it firms up just enough to get clean, thin strips.
  • Hot pan = better results: Let the oil get properly hot before adding anything. You want a sizzle, not a simmer.
  • Velvet the beef (optional): Toss raw beef strips with 1 tsp baking soda, rest 15 minutes, then rinse before cooking. Makes it noticeably more tender.
  • Veggie swaps: Snap peas, mushrooms, baby corn, zucchini, or bok choy all work beautifully here.
  • Storage: Refrigerate leftovers in an airtight container for up to 3 days. Reheat in a skillet over medium heat to keep texture. Freeze for up to 2 months — store separately from rice or noodles.
  • Make-ahead tip: Mix the soy sauce base ahead of time and refrigerate up to one week.
 

Nutrition (per serving/serves 4)

 
  • Calories: ~320 kcal
  • Protein: 28g
  • Carbohydrates: 12g
  • Fat: 18g
  • Fiber: 3g
  • Sodium: 680mg (varies with soy sauce used)