Sautéed Beef and Bell Pepper Stir-Fry

By AislePrompt Editorial · Published 2026-06-28 · Updated 2026-06-28

Quick stir-fried beef strips tossed with colorful bell peppers and a savory soy-ginger glaze. This Asian-inspired beef recipe, ready in about 27 minutes, pairs flank steak, soy sauce, sesame oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 calories and feeds 3, 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.

Ingredients

• 12 oz, thinly sliced against the grain flank steak
• 3 tbsp soy sauce
• 1 tbsp sesame oil
• 1 tbsp cornstarch
• 2 tbsp vegetable oil
• 1 large, sliced into thin strips red bell pepper
• 1 large, sliced into thin strips green bell pepper
• 1 large, sliced into thin strips yellow bell pepper
• 3 cloves, minced garlic cloves
• 1 tbsp, grated fresh ginger
• 1 tsp brown sugar
• 2 stalks, sliced for garnish green onions
• 1/4 tsp (optional) red pepper flakes

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Instructions

1. Step 1: In a medium bowl, combine 12 oz thinly sliced flank steak, 3 tbsp soy sauce, 1 tbsp sesame oil, and 1 tbsp cornstarch. Toss to coat and set aside for 10 minutes.
2. Step 2: Heat 2 tbsp vegetable oil in a large wok or skillet over high heat until shimmering.
3. Step 3: Add the marinated beef in a single layer and stir-fry for 2-3 minutes until browned but not fully cooked. Remove beef from pan and set aside.
4. Step 4: Add 3 minced garlic cloves, 1 tbsp grated fresh ginger, and sliced bell peppers (1 red, 1 green, 1 yellow, about 1 cup of each) to the pan. Stir-fry for 4-5 minutes until peppers are tender-crisp and fragrant.
5. Step 5: Return the beef to the pan, add 1 tsp brown sugar and 1/4 tsp red pepper flakes if using, and stir-fry together for 1-2 minutes until the beef is cooked through and sauce coats the ingredients.
6. Step 6: Remove from heat and garnish with 2 sliced green onions before serving with steamed rice.