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Overhead view of beef and broccolini stir fry served over white rice in a rustic bowl, topped with sliced green onions and sesame seeds.
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Beef and Broccolini Stir Fry

This Beef and Broccolini Stir Fry is a quick, flavorful dinner that tastes even better than takeout. Perfect for busy weeknights!
Course Main Dish
Cuisine American
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 4
Calories 449kcal
Author Katie G.

Ingredients

Sauce:

  • ½ cup beef broth
  • ¼ cup rice vinegar
  • ¼ cup hot water
  • ¼ cup low sodium soy sauce
  • 2 tablespoons sesame oil
  • 2 tablespoons cornstarch
  • 1 ½ tablespoons packed light brown sugar
  • 3 cloves garlic minced
  • 1 teaspoon fresh ginger grated
  • ¼-½ teaspoon red pepper flakes

Stir Fry:

  • 1 ½ pound flank steak thinly sliced into bite-sized strips
  • 2 tablespoons cooking oil peanut, avocado, olive, plus more as needed
  • 8 ounces broccolini cut into bite-sized pieces
  • 1 small yellow onion thinly sliced
  • 1 red bell pepper thinly sliced
  • Green onion thinly sliced, for garnish
  • Sesame seeds for garnish

Instructions

  • In a large bowl, add the sauce ingredients, whisking well to combine and dissolve the sugar. Place the sliced steak strips into the sauce to marinate while you prepare the vegetables.
  • When ready to cook, heat 1 tablespoon of oil in a wok or large skillet set over high heat. Stir fry half of the steak, reserving the sauce, for 1-2 minutes until no longer pink. Transfer to a clean bowl or plate and repeat with remaining steak, adding more oil if needed.
  • Heat 1 tablespoon of oil in the wok. Add broccolini and onion and stir fry for 3-4 minutes. Add the bell pepper and continue frying for another 2-3 minutes.
  • Add the cooked steak and reserved sauce and stir fry for about 2 minutes until sauce thickens and steak is warmed through.
  • Serve over rice or noodles, garnished with green onions and sesame seeds as desired.

Notes

  • Leftovers stay fresh in the fridge for up to 3 days.
  • Broccoli florets or snow peas work well as alternatives to broccolini.
  • For gluten-free, swap soy sauce for coconut aminos.
  • Delicious served over rice, noodles, or cauliflower rice.

Nutrition

Calories: 449kcal | Carbohydrates: 18g | Protein: 41g | Fat: 23g | Saturated Fat: 5g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 11g | Trans Fat: 0.03g | Cholesterol: 102mg | Sodium: 743mg | Potassium: 819mg | Fiber: 2g | Sugar: 8g | Vitamin A: 1970IU | Vitamin C: 93mg | Calcium: 99mg | Iron: 4mg