Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A vibrant sheet pan dish combining tender snapper fillets with a bold Cajun spice blend and crisp roasted seasonal vegetables. This seafood-inspired sheet pan (gluten free) ready in about 42 minutes pairs fillets (6 oz each) snapper fillets, olive oil, Cajun seasoning for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 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.

Prep: 15 min Cook: 27 min Serves 4 Seafood cuisine 280 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F. In a large bowl, toss 1 diced red bell pepper, 1 sliced yellow squash, and 1 cut red onion with 2 tbsp olive oil, 1 tsp salt, and 1/2 tsp black pepper until evenly coated.
  2. Step 2: Spread the vegetables on a large rimmed baking sheet in a single layer and roast for 15 minutes until they begin to soften and caramelize at the edges.
  3. Step 3: Meanwhile, pat dry 4 snapper fillets and rub each with 1 tbsp olive oil and 2 tbsp Cajun seasoning evenly on both sides.
  4. Step 4: Remove the baking sheet from the oven, nestle the seasoned snapper fillets among the vegetables, and drizzle 2 tbsp lemon juice over everything.
  5. Step 5: Return the pan to the oven and roast for an additional 10-12 minutes until the snapper flakes easily with a fork and vegetables are tender.
  6. Step 6: Sprinkle 2 tbsp chopped fresh parsley over the dish before serving warm.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Frequently asked questions

How long does Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables take to make?

Total time is about 42 minutes (15 min prep + 27 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep olive oil from drying out.

Can I substitute ingredients in Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Sheet Pan Cajun-Spiced Snapper with Roasted Vegetables gluten free?

Yes — this recipe is tagged gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

Related recipes