Sheet-Pan Cajun Salmon & Sweet Potato Wedges

Sheet-Pan Cajun Salmon & Sweet Potato Wedges is a game-changer for anyone craving a flavorful, hearty dinner without the hassle of juggling multiple pots and pans. This recipe combines the smoky, spicy kick of Cajun seasoning with tender, flaky salmon and crispy sweet potato wedges—all roasted together on one sheet pan for easy cleanup and maximum flavor. With vibrant bell peppers and red onion adding a fresh crunch, this meal is as colorful as it is delicious. Whether you’re cooking for your family or meal prepping for the week, this dish delivers a balanced, wholesome plate that will have everyone asking for seconds.

Why Sheet-Pan Cajun Salmon & Sweet Potato Wedges is Worth Your Time

There’s something magical about one-pan meals, and this Sheet-Pan Cajun Salmon & Sweet Potato Wedges recipe hits all the right notes. First, it’s incredibly simple to prepare—just toss your ingredients with olive oil and spices, arrange everything on the pan, and let the oven do the rest. The Cajun seasoning infuses the salmon and veggies with bold, aromatic flavors without overpowering the natural sweetness of the sweet potatoes. Plus, roasting the salmon alongside the wedges and peppers allows the flavors to mingle beautifully, giving you a perfectly balanced dinner in under 40 minutes.

Not only is this recipe fuss-free, but it’s also packed with nutrients. Salmon is rich in omega-3 fatty acids, which are great for your heart and brain, while sweet potatoes provide fiber, vitamins, and antioxidants. The colorful peppers add an extra boost of vitamins and a satisfying crunch. This dish is a wholesome weeknight winner that’s sure to become a staple in your cooking rotation.

What We’re Using

• 4 salmon fillets – Choose fresh, skin-on fillets for the best texture and flavor.
• 2 large sweet potatoes – Cut into wedges for even roasting and a perfect balance of crispy edges and tender centers.
• 3 tablespoons olive oil – The healthy fat that helps everything roast up beautifully and adds richness.
• 2 teaspoons Cajun seasoning – A blend of paprika, cayenne, garlic powder, oregano, and other spices that create that signature Cajun zing.
• 1 teaspoon garlic powder – Adds a subtle depth of flavor to the seasoning mix.
• Salt and pepper – To taste, enhancing all the natural flavors.
• 1 red bell pepper, sliced – Sweet and colorful, balancing the heat of the Cajun spices.
• 1 green bell pepper, sliced – Adds a slightly bitter crunch and vibrant green hue.
• 1 small red onion, sliced – Brings a mild sweetness and texture contrast.
• Chopped fresh parsley (optional) – For a fresh, herbaceous garnish that brightens the dish.

Appliances & Accessories

• Baking sheet – A large, rimmed sheet pan works best to hold the salmon and vegetables without overcrowding.
• Parchment paper or silicone baking mat – Helps prevent sticking and makes cleanup easier.
• Mixing bowls – For tossing the sweet potatoes, peppers, and salmon with oil and seasonings.
• Sharp knife – To slice the sweet potatoes, bell peppers, and onion evenly.
• Measuring spoons – For precise seasoning amounts.
• Oven mitts – Safety first when handling the hot sheet pan!

Make Sheet-Pan Cajun Salmon & Sweet Potato Wedges: A Simple Method

Step 1: Prep the Sweet Potatoes

Start by preheating your oven to 425°F (220°C). Wash and peel the sweet potatoes, then cut them into evenly sized wedges. Toss the wedges in a large mixing bowl with 2 tablespoons of olive oil, 1 teaspoon of Cajun seasoning, salt, and pepper. Make sure each wedge is coated well to ensure a crispy, flavorful roast.

Step 2: Arrange & Roast the Sweet Potatoes

Line your baking sheet with parchment paper or a silicone mat. Spread the sweet potato wedges in a single layer on one half of the sheet pan. Roast in the oven for about 15 minutes to give them a head start, as they’ll take the longest to cook.

Step 3: Season the Salmon and Veggies

While the sweet potatoes start roasting, prepare the salmon and vegetables. In a bowl, combine the remaining 1 tablespoon olive oil, 1 teaspoon Cajun seasoning, garlic powder, salt, and pepper. Brush this mixture over the salmon fillets. Toss the sliced red and green bell peppers and red onion in the same seasoning mix to keep the flavor consistent.

Step 4: Add Salmon and Vegetables to the Sheet Pan

After the sweet potatoes have roasted for 15 minutes, remove the baking sheet from the oven. Arrange the salmon fillets skin-side down on the empty side of the pan. Spread the seasoned bell peppers and onions around the salmon and sweet potatoes, ensuring everything has enough space to roast evenly.

Step 5: Roast Everything Together

Return the sheet pan to the oven and roast for an additional 12-15 minutes or until the salmon flakes easily with a fork and the sweet potatoes are tender inside with crispy edges. The bell peppers and onions should be softened but still vibrant and slightly caramelized.

Step 6: Garnish and Serve

Once done, remove from the oven and sprinkle chopped fresh parsley over the top for a pop of color and freshness. Serve immediately for the best texture and flavor.

Season-by-Season Upgrades

• Spring: Add asparagus or snap peas to the sheet pan for a fresh, green crunch.
• Summer: Toss in cherry tomatoes or zucchini slices to complement the warm weather produce.
• Fall: Swap bell peppers for roasted Brussels sprouts or butternut squash cubes to add earthiness.
• Winter: Incorporate root vegetables like parsnips or carrots for a cozy, hearty twist.

Easy-to-Miss Gotchas

• Don’t overcrowd the pan. Giving each piece room to roast ensures crispiness and even cooking.
• Cut sweet potatoes evenly. Uniform wedges cook at the same rate, preventing some from burning while others remain underdone.
• Use skin-on salmon fillets. The skin protects the fish from drying out and crisps up nicely in the oven.
• Rest the salmon briefly. Letting the salmon rest for a few minutes after roasting locks in moisture and flavor.

Store, Freeze & Reheat

Leftovers of this Sheet-Pan Cajun Salmon & Sweet Potato Wedges are fantastic for next-day meals. Store any uneaten portions in an airtight container in the refrigerator for up to 3 days. To reheat, gently warm the salmon and vegetables in a 350°F (175°C) oven for 10-15 minutes, or until heated through. Avoid microwaving if possible to preserve texture—especially for the salmon skin and crispy sweet potatoes.

If you want to freeze, wrap cooked salmon and vegetables tightly in foil or freezer-safe containers. Freeze for up to 2 months. Thaw overnight in the refrigerator before reheating as described above.

Your Questions, Answered

Can I use frozen salmon fillets for this recipe?

Yes, but make sure to thaw them completely and pat dry before seasoning and roasting. This helps prevent excess moisture and ensures the seasoning sticks well.

What can I substitute for Cajun seasoning if I don’t have any?

You can create a simple homemade blend using paprika, cayenne pepper, garlic powder, onion powder, dried oregano, dried thyme, salt, and black pepper. Adjust the cayenne for your desired spice level.

Is it okay to cook the sweet potatoes and salmon together from the start?

Sweet potatoes take longer to cook than salmon, so roasting them for 15 minutes first prevents overcooking the fish. If you try roasting everything at once, the salmon might be undercooked or the potatoes overdone.

How can I make this dish more kid-friendly?

Reduce or omit the cayenne pepper in the Cajun seasoning to lower the heat. You can also swap the bell peppers for milder veggies like zucchini or carrots.

Serve with These

• Dirty Rice Popeyes Cajun Rice – A flavorful side that complements the Cajun spices perfectly.
• Maple Miso Glazed Salmon – Another salmon recipe if you want to switch things up on a different night.
• Simple mixed green salad with lemon vinaigrette – For a fresh, crisp contrast.
• Garlic herb quinoa – Adds protein and texture to round out the meal.

Bring It to the Table

Serving this Sheet-Pan Cajun Salmon & Sweet Potato Wedges straight from the oven makes for a colorful, inviting presentation. The vibrant reds and greens from the peppers and parsley garnish brighten the plate, while the golden brown sweet potatoes and perfectly roasted salmon look irresistible. Pair it with a chilled glass of white wine or a refreshing iced tea to complete the experience. Whether you’re enjoying a cozy weeknight dinner or entertaining guests, this dish is sure to impress with its balance of bold flavors, textures, and ease of preparation.

With minimal effort and maximum flavor, Sheet-Pan Cajun Salmon & Sweet Potato Wedges is the perfect recipe to add to your repertoire. It’s healthy, satisfying, and delightfully simple—a true dinner win for any occasion. Give this recipe a try, and watch it become a fast favorite in your home!

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