25-Minute Pepper Steak Stir Fry

Skip the takeout line: tender strips of beef, crisp-tender peppers, and onions glossed in a savory soy-ginger sauce over steamy rice. It is colorful, fast, and hits that Chinese-takeout craving dead-on. Round out the spread with our garlic sautéed bok choy.

Pepper steak stir fry with tender beef strips, red and green peppers, and onions in a glossy sauce
Prep time15 min
Cook time10 min
Total25 min
Yield4 servings
CuisineAmerican
📌 Pin it

🧺Ingredients

  • 1 1/4 lb flank steak, sliced thin against the grain
  • 2 bell peppers (red and green), sliced
  • 1 large onion, sliced
  • 3 cloves garlic, minced
  • 1 tbsp fresh ginger, grated
  • 1/3 cup low-sodium soy sauce
  • 2 tbsp brown sugar
  • 1 tbsp cornstarch
  • 1/4 cup beef broth
  • 1 tbsp rice vinegar
  • 1 tbsp sesame oil
  • 2 tbsp neutral oil, divided
  • Cooked rice, for serving
  • Sesame seeds and sliced green onions, for garnish

👩‍🍳Instructions

  1. Slice it thin. For the most tender beef, freeze the flank steak 20 minutes first — it slices paper-thin against the grain much more easily.
  2. Mix the sauce. Whisk the soy sauce, brown sugar, cornstarch, beef broth, rice vinegar, and sesame oil in a small bowl until smooth.
  3. Sear the beef. Heat 1 tablespoon neutral oil in a wok or large skillet over high heat until smoking. Sear half the beef in a single layer, 1-2 minutes per side. Repeat with the rest; remove all beef to a plate.
  4. Stir-fry the veg. Add the remaining oil to the wok. Stir-fry the peppers and onion 3-4 minutes until crisp-tender. Add the garlic and ginger; cook 30 seconds.
  5. Glaze and serve. Return the beef to the wok, pour in the sauce, and toss 1-2 minutes until the sauce thickens into a glossy glaze. Serve over rice with sesame seeds and green onions.

🥩 Stir-fry secrets

A ripping-hot pan is everything — crowding the beef steams it instead of searing it, so work in batches. Slice against the grain for tenderness; with the grain gives you chewy strips no sauce can save. The cornstarch in the sauce doubles as the thickener, so whisk it in cold before it hits the heat.

Pepper steak stir fry with tender beef strips, red and green peppers, and onions in a glossy sauce
Save for later

Love this recipe?

Save it to your "Easy Dinner Recipes" board so this takeout-style stir fry is always one click away.

📌 Pin it for later

❓ Common questions

What cut of beef is best?
Flank steak is the classic choice; sirloin or skirt steak also work. Slice thin against the grain no matter the cut.

Can I add other vegetables?
Yes — snap peas, mushrooms, broccoli, or baby corn all fit right in. Keep everything in similar-size pieces.

How do I store leftovers?
Refrigerate up to 3 days. Reheat in a hot skillet for 2-3 minutes; the microwave makes the peppers soggy.