Quick Stir-Fried Garlic Beef with Broccoli and Bell Pepper

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

Tender strips of beef quickly stir-fried with crisp broccoli and colorful bell peppers in a savory garlic sauce for a satisfying weeknight meal. This Asian-inspired beef recipe, ready in about 20 minutes, pairs flank steak, broccoli florets, red bell pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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
• 2 cups broccoli florets
• 1 medium, thinly sliced red bell pepper
• 4, minced garlic cloves
• 3 tbsp soy sauce
• 1 tbsp oyster sauce
• 1 tsp cornstarch
• 2 tbsp vegetable oil
• 1/4 cup water
• 1 tsp sesame oil
• 2, sliced for garnish green onions
• 1/4 tsp black pepper

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Instructions

1. Step 1: In a small bowl, whisk together 3 tbsp soy sauce, 1 tbsp oyster sauce, 1 tsp cornstarch, and 1/4 cup water until smooth. Set aside.
2. Step 2: Heat 1 tbsp vegetable oil in a large skillet or wok over high heat until shimmering. Add 12 oz thinly sliced flank steak and 1/4 tsp black pepper. Stir-fry for 2-3 minutes until browned but slightly pink inside. Remove beef from skillet and set aside.
3. Step 3: Add remaining 1 tbsp vegetable oil to the skillet, then add 4 minced garlic cloves, 2 cups broccoli florets, and 1 thinly sliced red bell pepper. Stir-fry for 3-4 minutes until vegetables are crisp-tender and garlic is fragrant.
4. Step 4: Return the beef to the skillet along with the soy-oyster sauce mixture. Stir continuously for 1-2 minutes until the sauce thickens and coats the beef and vegetables evenly.
5. Step 5: Drizzle 1 tsp sesame oil over the stir-fry and toss gently. Remove from heat and garnish with 2 sliced green onions. Serve immediately.