Quick Stir-Fried Beef with Bell Peppers and Garlic Soy Sauce

By AislePrompt Editorial · Published 2026-08-05 · Updated 2026-08-05

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

Tender slices of beef stir-fried with colorful bell peppers in a savory garlic soy sauce, perfect for a fast and flavorful weeknight dinner. This Asian-inspired beef recipe, ready in about 20 minutes, pairs flank steak, red bell pepper, yellow bell pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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.

Prep: 10 min Cook: 10 min Serves 3 Asian cuisine 350 cal/serving

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Ingredients

12 oz, thinly sliced against the grain flank steak
1 medium, thinly sliced red bell pepper
1 medium, thinly sliced yellow bell pepper
1 medium, thinly sliced green bell pepper
2 tbsp vegetable oil
3 tbsp soy sauce
4 cloves minced garlic
1 tsp grated ginger
1 tbsp brown sugar
1 tsp cornstarch
2 tbsp water
to taste black pepper
2, sliced for garnish green onions

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Instructions

Step 1: In a small bowl, whisk together 3 tbsp soy sauce, 1 tbsp brown sugar, 1 tsp cornstarch, and 2 tbsp water until smooth; set aside.
Step 2: Heat 2 tbsp vegetable oil in a large wok or skillet over high heat until shimmering. Add 4 cloves minced garlic and 1 tsp grated ginger, stir-frying for 30 seconds until fragrant.
Step 3: Add 12 oz thinly sliced flank steak and stir-fry for 2-3 minutes until browned but still tender.
Step 4: Toss in 1 medium each of thinly sliced red, yellow, and green bell peppers, stir-frying an additional 2 minutes until peppers soften slightly but retain crunch.
Step 5: Pour the prepared sauce over the beef and peppers, stirring constantly for 1-2 minutes until sauce thickens and coats everything evenly.
Step 6: Season with black pepper to taste and garnish with 2 sliced green onions before serving immediately.