Quick Beef Stir-Fry with Broccoli and Bell Peppers

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-05-06 · Updated 2026-05-06

A fast and flavorful beef stir-fry featuring tender strips of beef with crisp broccoli and colorful bell peppers in a savory soy-garlic sauce. This chinese-inspired beef ready in about 30 minutes pairs broccoli florets, red bell pepper, sliced into strips, yellow bell pepper, sliced into strips for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 380 calories and feeds 4, 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

• 1 lb flank steak, thinly sliced against the grain
• 3 cups broccoli florets
• 1 medium red bell pepper, sliced into strips
• 1 medium yellow bell pepper, sliced into strips
• 3 tbsp vegetable oil
• 1/4 cup soy sauce
• 2 tbsp hoisin sauce
• 4 cloves fresh garlic, minced
• 1 tbsp fresh ginger, minced
• 1 tbsp cornstarch
• 3 tbsp water
• 1 tsp sesame oil
• 2 stalks green onions, sliced
• 1/4 tsp red chili flakes (optional)

Instructions

1. Step 1: In a medium bowl, toss 1 lb thinly sliced flank steak with 1 tbsp cornstarch until evenly coated.
2. Step 2: In a small bowl, whisk together 1/4 cup soy sauce, 2 tbsp hoisin sauce, and 3 tbsp water; set aside.
3. Step 3: Heat 2 tbsp vegetable oil in a large wok or skillet over high heat until shimmering. Add the beef in a single layer and stir-fry for 2-3 minutes until browned but not fully cooked. Remove beef and set aside.
4. Step 4: Add the remaining 1 tbsp vegetable oil to the wok. Add 4 minced garlic cloves and 1 tbsp minced ginger, stir-frying for 30 seconds until fragrant.
5. Step 5: Add 3 cups broccoli florets, 1 sliced red bell pepper, and 1 sliced yellow bell pepper. Stir-fry for 4-5 minutes until vegetables are crisp-tender.
6. Step 6: Return the beef to the wok, pour in the soy-hoisin sauce mixture, and stir well to coat. Cook for 2 more minutes until the sauce thickens and the beef is cooked through.
7. Step 7: Drizzle 1 tsp sesame oil over the stir-fry, sprinkle 2 sliced green onions and 1/4 tsp red chili flakes (if using) before serving with steamed rice or noodles.