Stir-Fried Basil Beef with Bell Peppers and Garlic

By AislePrompt Editorial · Published 2026-06-17 · Updated 2026-06-17

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 developed and reviewed.

A quick stir-fry with tender beef strips, vibrant bell peppers, and fresh basil leaves in a savory garlic sauce. This Asian-inspired beef recipe, ready in about 20 minutes, pairs flank steak, thinly sliced, red bell pepper, sliced into strips, green bell pepper, sliced into strips for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 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 280 cal/serving

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Ingredients

12 ounces flank steak, thinly sliced
1 medium red bell pepper, sliced into strips
1 medium green bell pepper, sliced into strips
4 garlic cloves, minced
1 cup fresh basil leaves
3 tablespoons soy sauce
1 tablespoon oyster sauce
1 teaspoon brown sugar
2 tablespoons vegetable oil
1 teaspoon cornstarch
2 tablespoons water

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Instructions

Step 1: In a small bowl, whisk together 3 tablespoons soy sauce, 1 tablespoon oyster sauce, 1 teaspoon brown sugar, 1 teaspoon cornstarch, and 2 tablespoons water until smooth.
Step 2: Heat 2 tablespoons vegetable oil in a large skillet or wok over high heat until shimmering. Add 4 minced garlic cloves and stir-fry for 30 seconds until fragrant but not browned.
Step 3: Add 12 ounces thinly sliced flank steak and stir-fry for 3-4 minutes until the beef turns brown on all sides but still tender.
Step 4: Toss in 1 sliced red bell pepper and 1 sliced green bell pepper strips, stir-frying for 2-3 minutes until peppers are slightly softened but still crisp.
Step 5: Pour the prepared sauce over the beef and vegetables, stirring constantly for 1-2 minutes until the sauce thickens and coats everything.
Step 6: Remove from heat and fold in 1 cup fresh basil leaves until just wilted. Serve immediately with steamed rice if desired.