Sheet Pan Cajun-Spiced Redfish with Roasted Vegetables

By AislePrompt Editorial · Published 2026-08-06 · Updated 2026-08-06

This sheet pan dish features tender redfish fillets seasoned with bold Cajun spices, roasted alongside vibrant bell peppers and sweet potatoes for a hearty, flavorful meal. This Southern-inspired seafood recipe (gluten free), ready in about 42 minutes, pairs redfish fillets, sweet potatoes, 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 4, so it slots cleanly into a weekly meal plan and pairs well with rice, quinoa, or a quick salad. 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

• 4 fillets (6 oz each) redfish fillets
• 2 medium, peeled and cut into 1-inch cubes sweet potatoes
• 1 large, sliced into strips red bell pepper
• 1 large, sliced into strips yellow bell pepper
• 4 tbsp olive oil
• 2 tbsp Cajun seasoning
• 1 tsp garlic powder
• 1 tsp smoked paprika
• 1 tsp salt
• 1/2 tsp black pepper
• for serving lemon wedges

The sheet pan we’d roast this on → Best Sheet Pans in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Preheat oven to 425°F. In a large bowl, toss 2 medium peeled sweet potatoes cut into 1-inch cubes and 1 large sliced red bell pepper and 1 large sliced yellow bell pepper with 2 tbsp olive oil, 1 tsp Cajun seasoning, 1/2 tsp salt, and 1/4 tsp black pepper until evenly coated.
2. Step 2: Spread the vegetables evenly on a large rimmed baking sheet and roast for 15 minutes until they begin to soften and brown at the edges.
3. Step 3: Meanwhile, brush 4 redfish fillets (6 oz each) with 2 tbsp olive oil and season both sides with the remaining 1 tbsp Cajun seasoning, 1 tsp garlic powder, 1 tsp smoked paprika, 1/2 tsp salt, and 1/4 tsp black pepper.
4. Step 4: Remove the baking sheet from the oven, push the vegetables to the sides, and place the seasoned redfish fillets in the center. Return to the oven and roast for 10-12 minutes until the fish flakes easily with a fork and the vegetables are tender.
5. Step 5: Serve the redfish and roasted vegetables hot with fresh lemon wedges for squeezing over the top.