Spiced Beef Stir-Fry with Bell Peppers and Garlic

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

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.

A quick and flavorful stir-fry combining tender beef strips with colorful bell peppers and a fragrant garlic chili sauce. This Thai recipe, ready in about 20 minutes, pairs beef sirloin, 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 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.

Prep: 10 min Cook: 10 min Serves 3 Chinese cuisine 400 cal/serving

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Ingredients

12 oz, thinly sliced against the grain beef sirloin
1 medium, sliced into thin strips red bell pepper
1 medium, sliced into thin strips yellow bell pepper
4 cloves, minced garlic cloves
1 inch piece, minced ginger
3 tbsp soy sauce
1 tbsp chili paste
1 tsp cornstarch
2 tbsp vegetable oil
1 tsp sesame oil
1/4 tsp black pepper

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Instructions

Step 1: Toss 12 oz thinly sliced beef sirloin with 1 tsp cornstarch and 1 tbsp soy sauce in a bowl to lightly coat the meat and tenderize it.
Step 2: Heat 2 tbsp vegetable oil in a large wok or skillet over high heat until shimmering. Add the beef strips in a single layer and sear for 2 minutes without stirring to develop a crust.
Step 3: Stir the beef and add 4 minced garlic cloves and 1 inch minced ginger, cooking for 30 seconds until fragrant.
Step 4: Add 1 medium sliced red bell pepper and 1 medium sliced yellow bell pepper strips, stir-frying for 3-4 minutes until the peppers soften but remain crisp.
Step 5: Stir in 2 tbsp soy sauce, 1 tbsp chili paste, 1 tsp sesame oil, and 1/4 tsp black pepper, tossing everything for another minute until the sauce thickens slightly and coats the beef and vegetables.
Step 6: Remove from heat and serve hot over steamed rice or noodles.