Power-Packed Beef Stir-Fry with Garlic and Bell Peppers

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A quick beef stir-fry featuring tender strips of beef and vibrant bell peppers, delivering a protein-rich meal perfect for strength and endurance. This Asian Fusion-inspired beef recipe (high protein), ready in about 25 minutes, pairs flank steak, thinly sliced, red bell pepper, sliced, green bell pepper, sliced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 10 min Serves 4 Asian Fusion cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a medium bowl, toss 1 lb thinly sliced flank steak with 3 tbsp soy sauce, 1 tsp cornstarch, 1/4 tsp black pepper, and 1 tbsp grated ginger; set aside for 10 minutes to marinate.
  2. Step 2: Heat 2 tbsp vegetable oil in a large skillet or wok over high heat until shimmering. Add the marinated beef in a single layer and sear for 2 minutes without stirring to get a good caramelization.
  3. Step 3: Stir the beef and add 3 minced garlic cloves along with 1 sliced red bell pepper and 1 sliced green bell pepper; stir-fry for 3-4 minutes until the peppers are tender-crisp and the beef is cooked through.
  4. Step 4: Drizzle 2 tbsp sesame oil over the stir-fry and toss well to combine, then remove from heat.
  5. Step 5: Garnish with 2 tbsp sliced scallions and serve immediately with steamed rice or your choice of grain.

Frequently asked questions

How long does Power-Packed Beef Stir-Fry with Garlic and Bell Peppers take to make?

Total time is about 25 minutes (15 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Power-Packed Beef Stir-Fry with Garlic and Bell Peppers?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep flank steak, thinly sliced from drying out.

Can I substitute ingredients in Power-Packed Beef Stir-Fry with Garlic and Bell Peppers?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Power-Packed Beef Stir-Fry with Garlic and Bell Peppers for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Power-Packed Beef Stir-Fry with Garlic and Bell Peppers high protein?

Yes — this recipe is tagged high protein based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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