Sheet Pan Cajun-Spiced Salmon with Roasted Sweet Potatoes and Green Beans

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

A vibrant sheet pan meal featuring tender salmon fillets seasoned with bold Cajun spices, paired with caramelized sweet potatoes and crisp green beans. This southern-inspired seafood ready in about 45 minutes pairs 6 oz each salmon fillets, trimmed green beans, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 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: 30 min Serves 4 Southern cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F. In a large mixing bowl, toss 2 medium sweet potatoes cut into 1-inch cubes with 2 tbsp olive oil, 1 tsp salt, and 1/2 tsp black pepper. Spread evenly on a large rimmed baking sheet.
  2. Step 2: Roast sweet potatoes in the oven for 15 minutes. Meanwhile, in the mixing bowl, combine 4 salmon fillets with 2 tbsp olive oil, 2 tbsp Cajun seasoning, 1 tsp garlic powder, 1 tsp smoked paprika, and 2 tbsp fresh lemon juice, coating evenly.
  3. Step 3: After 15 minutes, remove the baking sheet from oven, push sweet potatoes to one side, and add 12 oz trimmed green beans tossed with 1 tbsp olive oil and a pinch of salt to the other side.
  4. Step 4: Place the seasoned salmon fillets skin-side down on the baking sheet between the sweet potatoes and green beans. Return to the oven and roast for an additional 12-15 minutes, until salmon flakes easily with a fork and vegetables are tender and slightly caramelized.
  5. Step 5: Remove from oven and let rest for 5 minutes before serving all components warm.

Equipment for this recipe

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Frequently asked questions

How long does Sheet Pan Cajun-Spiced Salmon with Roasted Sweet Potatoes and Green Beans take to make?

Total time is about 45 minutes (15 min prep + 30 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 Salmon with Roasted Sweet Potatoes and Green Beans?

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 6 oz each salmon fillets from drying out.

Can I substitute ingredients in Sheet Pan Cajun-Spiced Salmon with Roasted Sweet Potatoes and Green Beans?

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 Salmon with Roasted Sweet Potatoes and Green Beans 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.

What goes well with Sheet Pan Cajun-Spiced Salmon with Roasted Sweet Potatoes and Green Beans?

Southern seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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