Sheet Pan Cajun-Spiced Shrimp and Vegetable Roast

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-05-01 · Updated 2026-05-01

A vibrant sheet pan dinner featuring Cajun-spiced shrimp roasted with colorful vegetables for a quick, flavorful, and healthy meal. This cajun-inspired seafood ready in about 22 minutes pairs large shrimp, peeled and deveined, red bell pepper, sliced, zucchini, sliced into half-moons for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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 large shrimp, peeled and deveined
• 1 medium (1 cup) red bell pepper, sliced
• 1 medium (1 cup) zucchini, sliced into half-moons
• 1 small (1/2 cup) red onion, sliced
• 3 tbsp olive oil
• 2 tsp Cajun seasoning
• 1 tsp smoked paprika
• 1 tsp garlic powder
• 1 tbsp lemon juice
• 1 tsp salt
• 1/2 tsp black pepper
• 2 tbsp fresh parsley, chopped

Instructions

1. Step 1: Preheat oven to 425°F. In a large bowl, toss 1 lb peeled and deveined large shrimp with 2 tsp Cajun seasoning, 1 tsp smoked paprika, 1 tsp garlic powder, 1 tsp salt, 1/2 tsp black pepper, and 3 tbsp olive oil until evenly coated.
2. Step 2: Add 1 cup sliced red bell pepper, 1 cup sliced zucchini half-moons, and 1/2 cup sliced red onion to the bowl. Toss gently to combine all ingredients with the seasoning and oil.
3. Step 3: Spread the shrimp and vegetable mixture in a single layer on a large rimmed baking sheet. Roast in the preheated oven for 10-12 minutes until shrimp are opaque and vegetables are tender-crisp.
4. Step 4: Remove from oven, drizzle 1 tbsp fresh lemon juice over the top, sprinkle 2 tbsp chopped fresh parsley, and toss lightly before serving for a bright finish.