Garlic Butter Baked Salmon and Shrimp with Potatoes

There’s something special about a dinner that brings everyone to the table without leaving you with a mountain of dishes to wash. This Garlic Butter Baked Salmon and Shrimp with Potatoes is one of those meals that feels a little luxurious while still being wonderfully easy to prepare at home.

Imagine tender salmon with a beautifully seasoned surface, juicy shrimp coated in melted garlic butter, and golden potatoes roasted alongside sweet, caramelized onions. Everything comes together with fresh lemon, fragrant herbs, and just the right amount of seasoning. As the tray bakes, the kitchen fills with the irresistible aroma of garlic, butter, and roasted vegetables.

What makes this recipe especially lovely is that the ingredients cook together on one tray, allowing their flavors to mingle. The potatoes soak up the savory juices, the lemon adds a bright, fresh touch, and the seafood stays at the heart of the dish. It’s perfect for a relaxed family dinner, a weekend gathering, or any evening when you want something comforting without spending hours in the kitchen.

Ingredients

This recipe serves four people and uses simple ingredients to create a delicious, colorful seafood dinner.

For the Salmon, Shrimp, and Vegetables

1 large salmon fillet, about 700 g
500 g large shrimp, peeled and deveined
700 g baby potatoes, halved or quartered
2 medium onions, cut into wedges
4 tablespoons unsalted butter, melted
3 tablespoons olive oil
5 cloves garlic, minced
2 lemons, cut into wedges
1 teaspoon paprika
1 teaspoon dried oregano
1 teaspoon dried thyme
½ teaspoon chili flakes, optional
1 teaspoon salt, or to taste
½ teaspoon black pepper
2 tablespoons fresh parsley, chopped

Instructions

Step 1: Prepare the Oven and Baking Tray

Preheat your oven to 200°C (400°F). Line a large baking tray with aluminum foil or parchment paper for easier cleanup.

Choose a tray large enough to hold the potatoes, onions, salmon, and shrimp without overcrowding them. Giving the ingredients enough room helps the vegetables roast beautifully instead of steaming.

Step 2: Season the Potatoes and Onions

Place the halved or quartered baby potatoes and onion wedges on the prepared tray.

Drizzle them with 2 tablespoons of olive oil. Add half of the minced garlic, the paprika, oregano, thyme, salt, and black pepper.

Toss everything together until the potatoes and onions are evenly coated. The herbs and spices will create a fragrant seasoning that becomes even more delicious as the vegetables roast.

Step 3: Roast the Vegetables

Spread the potatoes and onions into a single layer and place the tray in the oven.

Roast for 20–25 minutes, turning the potatoes halfway through cooking. They should begin to soften, develop golden edges, and release their lovely roasted aroma.

Giving the potatoes a head start is important because they generally need more time in the oven than the seafood.

Step 4: Make the Garlic Butter

While the vegetables roast, prepare the sauce that brings everything together.

In a small bowl, combine the melted butter, remaining minced garlic, 1 tablespoon of olive oil, and chili flakes if you enjoy a little heat. Stir in half of the chopped parsley.

Mix well until the garlic and herbs are evenly distributed throughout the buttery mixture.

The result is a rich, fragrant garlic butter that will coat the salmon and shrimp with plenty of flavor.

Step 5: Add the Salmon

Carefully remove the tray from the oven once the potatoes have started to soften.

Place the salmon fillet in the center of the tray, nestled among the potatoes and onions.

Brush the salmon generously with some of the garlic butter mixture, making sure the surface is well coated. Squeeze a little fresh lemon juice over the top for a bright, citrusy finish.

The combination of garlic, butter, and lemon complements the salmon beautifully without overpowering its natural flavor.

Step 6: Arrange the Shrimp

Arrange the peeled and deveined shrimp around the salmon, spreading them out in a single layer wherever possible.

Coat the shrimp with the remaining garlic butter mixture, turning them gently so they are seasoned on both sides.

Add several lemon wedges around the tray. As they warm in the oven, their juices mingle with the butter and seafood, creating a delicious base for serving.

Step 7: Bake Until Perfectly Cooked

Return the tray to the oven and bake for approximately 12–18 minutes, depending on the thickness of the salmon and the size of the shrimp.

The shrimp should turn pink and opaque, while the salmon should become tender and separate easily with a fork. Check the thickest part of the salmon with a food thermometer and cook until it reaches 63°C (145°F).

Keep an eye on the seafood toward the end of cooking, as shrimp can become tough when overcooked.

Once everything is ready, the potatoes should be golden and tender, the onions soft and sweet, and the garlic butter fragrant throughout the tray.

Step 8: Add the Fresh Finishing Touches

Remove the tray from the oven and sprinkle the remaining chopped parsley over the salmon, shrimp, and potatoes.

Squeeze fresh lemon juice over the entire dish, then spoon some of the flavorful garlic butter juices from the tray over the seafood.

This final touch adds freshness and brings all the flavors together. The contrast between the rich butter, fragrant garlic, roasted vegetables, and bright lemon makes every bite satisfying.

Step 9: Serve and Enjoy

Serve the salmon and shrimp immediately while everything is warm.

Arrange the salmon on a large serving platter, surround it with the shrimp and golden potatoes, and tuck the roasted onions and lemon wedges between the ingredients.

Spoon any remaining pan juices over the top and finish with a little extra parsley if desired.

It’s a beautiful, colorful meal that looks impressive on the table but requires very little fuss.

Presentation: Make It Beautiful

This one-pan seafood dinner is naturally colorful, so a few simple finishing touches are all you need.

For a family-style presentation, place the salmon in the center of a large platter and arrange the shrimp and roasted potatoes around it. Add the caramelized onions, scatter fresh parsley over everything, and finish with lemon wedges.

For individual plates, serve a portion of salmon with several shrimp and a generous helping of potatoes. Drizzle a little garlic butter from the tray over the seafood just before serving.

You can also pair the dish with:

A fresh green salad: Crisp lettuce, cucumber, and a light lemon dressing balance the richness of the butter.
Steamed broccoli or green beans: These add color and a fresh, simple contrast.
Roasted asparagus: A lovely vegetable side that complements both salmon and shrimp.
Crusty bread: Perfect for soaking up every last drop of the garlicky pan juices.

For an extra-special touch, serve the meal on a white platter. The golden potatoes, pink shrimp, salmon, green parsley, and bright lemon wedges will stand out beautifully.

Helpful Tips for the Best Results

Cut the potatoes evenly. Halve smaller potatoes and quarter larger ones so they cook at a similar rate.

Give the vegetables a head start. Roasting the potatoes and onions before adding the seafood helps prevent overcooked salmon while ensuring the vegetables become tender.

Use fresh lemon for the best finish. A squeeze of lemon just before serving brightens the garlic butter and brings out the natural flavor of the seafood.

Avoid overcrowding the tray. If the ingredients are packed too tightly, they may release moisture instead of roasting properly. Use a second tray if necessary.

Watch the shrimp closely. Smaller shrimp may cook faster than larger ones, so check them toward the end and remove them when they are pink and opaque.

Keep the garlic fragrant, not burnt. The garlic is mixed with butter and oil before baking, which helps distribute its flavor throughout the dish.

Nutritional Information

⏰ Prep Time: 20 minutes
🍳 Cooking Time: 40 minutes
🕒 Total Time: 1 hour
🔥 Calories: Approximately 550–650 kcal per serving
🍽️ Servings: 4 servings

Estimated Nutrition per Serving:

🥩 Protein: 45–50 g
🍞 Carbohydrates: 35–40 g
🥑 Total Fat: 25–32 g

Nutrition information is estimated and may vary depending on the size of the salmon fillet, the amount of butter and olive oil used, and individual serving sizes.

Conclusion: A Simple Seafood Dinner to Remember

This Garlic Butter Baked Salmon and Shrimp with Potatoes is the kind of recipe that makes an ordinary dinner feel special. The tender seafood, golden roasted potatoes, sweet onions, and rich garlic butter create a wonderful combination of flavors and textures, while the fresh lemon and herbs keep everything tasting bright and balanced.

And because most of the cooking happens on one tray, you can spend less time worrying about complicated preparation and more time enjoying the meal with the people around you.

Whether you’re planning a cozy family dinner or looking for an easy yet elegant dish to share with guests, this recipe is a delicious choice.

Serve it hot, add your favorite fresh side, and don’t forget those lemon wedges. Once everyone tastes the buttery garlic sauce soaking into the roasted potatoes, this one-pan seafood dinner may quickly become a favorite in your kitchen.