This restaurant-style salmon and shrimp dinner combines perfectly seared seafood, buttery mashed potatoes, and a rich garlic Parmesan cream sauce. Every bite is packed with bold Cajun-inspired seasoning, fresh herbs, and comforting flavors, making this dish perfect for a special dinner, date night, or an elegant weekend meal at home.
With simple ingredients and a quick cooking process, you can prepare this delicious seafood dinner in about 35 minutes.
Recipe Overview
| Detail | Information |
| Preparation Time | 15 minutes |
| Cooking Time | 20 minutes |
| Total Time | 35 minutes |
| Servings | 2 |
| Course | Main Course |
| Cuisine | American-inspired |
| Cooking Method | Pan-searing and boiling |
| Difficulty | Easy |
| Calories | Approximately 850–1,050 per serving |
Why You’ll Love This Recipe
Restaurant-quality flavor at home: Golden-seared salmon, juicy shrimp, and creamy garlic sauce create a meal that feels special without requiring complicated cooking techniques.
A complete and satisfying dinner: The combination of seafood, mashed potatoes, and a creamy sauce delivers protein, carbohydrates, and rich flavor in one comforting plate.
Quick and convenient: This recipe comes together in approximately 35 minutes, making it a wonderful choice for busy evenings when you want something delicious.
Easy to customize: You can adjust the Cajun seasoning, swap the herbs, or use milk instead of heavy cream in the mashed potatoes to suit your preferences.
Perfect for special occasions: Serve this elegant seafood dinner for a romantic evening, a family celebration, or a restaurant-inspired meal at home.
Ingredients
For the Salmon and Shrimp
| Ingredient | Quantity |
| Salmon fillets | 2 fillets, approximately 5–6 oz (140–170 g) each |
| Large shrimp, peeled and deveined | 6–8 |
| Olive oil | 1 tablespoon |
| Unsalted butter | 1 tablespoon |
| Cajun or blackened seasoning | 1 teaspoon, or to taste |
For a homemade blackened seasoning, combine paprika, garlic powder, onion powder, dried oregano, salt, and freshly ground black pepper. Add a small pinch of cayenne pepper if you enjoy extra heat.
For the Creamy Mashed Potatoes
| Ingredient | Quantity |
| Yukon Gold or Russet potatoes | 3 medium |
| Unsalted butter | 3 tablespoons |
| Heavy cream or warm milk | 1/4 cup (60 ml) |
| Salt | To taste |
| Freshly ground black pepper | To taste |
For the Garlic Parmesan Cream Sauce
| Ingredient | Quantity |
| Unsalted butter | 1 tablespoon |
| Garlic cloves, minced | 2 |
| Heavy cream | 1/2 cup (120 ml) |
| Chicken or vegetable broth | 2 tablespoons (30 ml) |
| Grated Parmesan cheese | 2 tablespoons |
| Fresh parsley or dill, chopped | 1 tablespoon |
| Salt and black pepper | To taste |
Step-by-Step Instructions
Step 1: Prepare the Mashed Potatoes
Peel the potatoes and cut them into evenly sized quarters. Place them in a large saucepan and cover with cold, salted water.
Bring the water to a boil, then reduce the heat slightly and cook for approximately 15 minutes, or until the potatoes are tender when pierced with a fork.
Drain the potatoes thoroughly and return them to the warm saucepan. Add the butter and warm cream or milk.
Mash until smooth and creamy, seasoning with salt and freshly ground black pepper to taste. Avoid overmixing, which can make the potatoes gluey.
Cover and keep warm while preparing the seafood.
Step 2: Season the Salmon and Shrimp
Pat the salmon fillets and shrimp dry with paper towels. Removing excess moisture helps the seafood develop a beautiful golden crust.
Sprinkle the Cajun or blackened seasoning evenly over the salmon and shrimp. Press the seasoning gently onto the surfaces so it adheres.
If your seasoning blend already contains salt, taste before adding any extra.
Step 3: Pan-Sear the Salmon
Heat the olive oil and 1 tablespoon of butter in a large skillet over medium-high heat.
If using skin-on salmon, place the fillets skin-side down first. Press gently for a few seconds to help the skin make even contact with the pan.
Cook for approximately 4–5 minutes on the skin side, depending on thickness, then carefully flip and cook for another 2–4 minutes, or until the salmon reaches your preferred doneness.
For food safety, the USDA recommends cooking fish to an internal temperature of 145°F (63°C), measured at the thickest part.
Transfer the salmon to a clean plate and let it rest while you cook the shrimp.
Step 4: Cook the Shrimp
Using the same skillet, add the shrimp in a single layer. If the pan looks dry, add a small drizzle of olive oil.
Sear for approximately 1–2 minutes per side, depending on size, until the shrimp turn pink, opaque, and slightly golden.
Avoid overcooking, as shrimp can become rubbery if left in the pan too long.
Transfer the shrimp to the plate with the salmon.
Step 5: Make the Creamy Garlic Parmesan Sauce
Reduce the heat to medium-low. Add 1 tablespoon of butter to the same skillet.
Once melted, add the minced garlic and sauté for about 30–60 seconds, stirring constantly until fragrant. Do not let the garlic burn.
Pour in the broth and heavy cream, scraping up the flavorful browned bits from the bottom of the pan.
Stir in the grated Parmesan cheese and chopped parsley or dill. Let the sauce simmer gently for 2–3 minutes, stirring frequently, until it begins to thicken.
Season with salt and black pepper to taste. If the sauce becomes too thick, add a small splash of broth or cream until it reaches your desired consistency.
Step 6: Assemble and Serve
Divide the creamy mashed potatoes between two serving plates, creating a generous bed for the seafood.
Place one salmon fillet over each portion of potatoes. Arrange half of the cooked shrimp on top of each salmon fillet.
Spoon the warm garlic Parmesan cream sauce generously over the seafood, allowing some to flow onto the mashed potatoes.
Finish with freshly chopped parsley, a little black pepper, and an optional squeeze of lemon juice.
Serve immediately while the seafood is warm and the sauce is silky.
Best Tips for Perfect Salmon and Shrimp
Dry the seafood thoroughly. Excess moisture prevents proper browning and can cause the seafood to steam instead of sear.
Preheat the skillet. A properly heated pan helps create a flavorful crust without requiring excessive cooking time.
Choose salmon fillets of similar thickness. This helps both portions cook at approximately the same rate.
Avoid overcrowding the pan. Cook the shrimp in batches if necessary so they sear instead of release too much moisture.
Keep the sauce at a gentle simmer. Heavy cream can separate or become greasy if boiled aggressively.
Use freshly grated Parmesan. It generally melts more smoothly than pre-shredded cheese and gives the sauce a better texture.
Coordinate the cooking. Prepare the potatoes first, then cook the seafood and make the sauce while the potatoes stay warm.
Best Ingredient Options
Salmon: Atlantic salmon works well because its rich, buttery texture pairs beautifully with cream sauce. Sockeye salmon is another option, although it is often leaner and may cook more quickly.
Shrimp: Large or jumbo shrimp are ideal because they remain juicy and are easy to arrange over the salmon.
Potatoes: Yukon Gold potatoes create a naturally buttery, creamy mash, while Russet potatoes produce a lighter, fluffier texture.
Cream: Heavy cream gives the sauce its luxurious consistency. For a lighter option, use half-and-half, keeping the heat low to reduce the risk of curdling.
Cheese: Parmesan provides a savory, nutty flavor. Add it gradually to help it melt evenly.
Herbs: Fresh parsley creates a clean, fresh finish, while dill complements the seafood with a slightly delicate, aromatic flavor.
Seasoning: Cajun seasoning adds a spicy, smoky flavor. For a milder dish, use paprika, garlic powder, onion powder, and black pepper.
Recipe Variations
Lemon Garlic Salmon and Shrimp: Add fresh lemon juice and a little lemon zest to the finished sauce for a brighter flavor that balances the richness of the cream.
Spicy Cajun Seafood: Increase the Cajun seasoning or add a pinch of cayenne pepper for extra heat.
Spinach Garlic Cream Sauce: Stir a handful of fresh baby spinach into the sauce and cook until wilted before adding the herbs.
Mushroom Cream Sauce: Sauté sliced mushrooms after cooking the seafood, then prepare the garlic cream sauce in the same skillet for a deeper, earthier flavor.
Lighter Garlic Sauce: Replace some of the heavy cream with low-sodium broth and use a smaller amount of Parmesan. The sauce will be less rich but still flavorful.
Extra-Cheesy Mashed Potatoes: Stir a little grated Parmesan into the mashed potatoes for an extra savory touch.
Low-Carbohydrate Option: Replace the mashed potatoes with mashed cauliflower or serve the seafood over roasted vegetables.
What to Serve With Salmon and Shrimp
Roasted asparagus: Tender asparagus adds freshness and a pleasant contrast to the creamy sauce.
Steamed broccoli: Broccoli provides color, texture, and a simple vegetable side that complements the seafood.
Green salad: A crisp salad with lemon vinaigrette helps balance the richness of the potatoes and sauce.
Roasted green beans: Lightly seasoned green beans make a delicious side without overpowering the main dish.
Garlic bread: A small serving of warm bread is perfect for soaking up any remaining Parmesan cream sauce.
Roasted carrots: Their natural sweetness pairs nicely with the smoky seafood seasoning.
Make-Ahead Instructions
You can peel and cut the potatoes a few hours ahead of time. Keep them submerged in cold water in the refrigerator until ready to cook.
The seasoning blend can also be prepared in advance and stored in an airtight container.
For the best texture, cook the salmon and shrimp just before serving. The garlic cream sauce can be prepared shortly beforehand and gently reheated over low heat, with a splash of cream or broth added if needed.
Avoid fully assembling the plates too far in advance, as the seafood can lose its crisp exterior and the potatoes may absorb too much sauce.
Storage Instructions
Allow leftovers to cool promptly, then transfer the salmon, shrimp, mashed potatoes, and sauce into airtight containers. Store them in the refrigerator at 40°F (4°C) or below and consume within 3–4 days.
For the best quality, store the seafood separately from the potatoes and sauce when possible.
Do not leave cooked seafood at room temperature for more than 2 hours, or more than 1 hour when the surrounding temperature exceeds 90°F (32°C).
Reheating Instructions
Salmon and shrimp: Reheat gently in a covered skillet over low heat with a small splash of broth or water. Heat until the seafood reaches 165°F (74°C). Avoid prolonged heating, which can dry out the salmon and toughen the shrimp.
Mashed potatoes: Place them in a saucepan over low heat and stir in a little warm milk or cream until smooth and heated through.
Garlic cream sauce: Warm slowly in a small saucepan, stirring frequently. Add a little broth or cream if it has thickened during refrigeration.
You can also use a microwave at medium power in short intervals, stirring the sauce and potatoes between intervals to promote even heating.
Freezing Instructions
Freezing is possible, but this dish is best enjoyed fresh.
Cooked salmon and shrimp can be frozen separately in airtight, freezer-safe containers for approximately 2–3 months for best quality. Thaw overnight in the refrigerator before reheating.
Mashed potatoes can also be frozen, although their texture may change slightly after thawing. Stir in a little cream or milk while reheating to restore their smoothness.
Cream-based garlic sauce is not ideal for freezing because it may separate after thawing. Freshly preparing the sauce is recommended.
Common Mistakes to Avoid
Overcooking the seafood: Salmon becomes dry and shrimp become rubbery when cooked for too long. Monitor cooking times closely and check the internal temperature of the salmon.
Using a cold skillet: Starting with an insufficiently heated pan can prevent the seafood from developing a golden crust.
Adding too much seasoning: Cajun and blackened seasoning blends can be salty. Start with a moderate amount and adjust to taste.
Boiling the cream sauce: High heat can cause the sauce to separate. Keep it at a gentle simmer.
Mashing wet potatoes: Drain the potatoes well before mashing to avoid a watery consistency.
Using cold cream in the potatoes: Warm cream or milk blends more easily with hot potatoes and helps create a smoother mash.
Serving the dish too late: The seafood is best when freshly cooked, and the sauce has its most appealing texture immediately after preparation.
Nutrition Estimate
The following values are approximate and depend on the size of the seafood portions, the type of cream used, and the amount of butter and seasoning.
| Nutrient | Estimated Amount per Serving |
| Calories | 850–1,050 kcal |
| Protein | 45–60 g |
| Carbohydrates | 45–60 g |
| Total Fat | 45–65 g |
| Saturated Fat | 20–30 g |
| Fiber | 4–6 g |
| Sugar | 4–7 g |
| Sodium | 700–1,300 mg |
These estimates assume the recipe serves two people and includes the mashed potatoes and garlic cream sauce. Actual values may vary considerably with ingredient brands and portion sizes.
Frequently Asked Questions
Can I use frozen salmon and shrimp?
Yes. Thaw them completely in the refrigerator before cooking and pat them dry thoroughly. Cooking seafood while still frozen or wet can make it harder to achieve a golden sear.
How do I know when the salmon is cooked?
The USDA recommends an internal temperature of 145°F (63°C) at the thickest part. The flesh should be opaque and separate easily with a fork.
Can I make this recipe without heavy cream?
Yes. You can use half-and-half or evaporated milk for a lighter sauce. Add it over low heat and avoid boiling. The result may be thinner and less rich than a sauce made with heavy cream.
What can I use instead of Parmesan?
Pecorino Romano can provide a similar savory flavor, but it is saltier. You can also omit the cheese and slightly reduce the sauce to develop a creamy consistency.
Can I use a different fish?
Yes. Firm white fish such as cod or halibut can work, although cooking times will vary according to thickness.
Can I make the recipe less spicy?
Absolutely. Replace the Cajun seasoning with mild paprika, garlic powder, onion powder, dried oregano, and a small amount of black pepper.
Is this recipe suitable for a weeknight dinner?
Yes. With approximately 35 minutes of preparation and cooking, it is a practical option for a quick but elegant dinner.
Can I prepare the garlic cream sauce ahead of time?
You can prepare it shortly before serving and refrigerate it promptly if needed. Reheat it gently, stirring frequently, and add a splash of cream or broth to restore its consistency.
Final Thoughts
Pan-Seared Blackened Salmon and Shrimp over Creamy Mashed Potatoes with Garlic Parmesan Sauce is a delicious combination of smoky seasoning, tender seafood, buttery potatoes, and rich, aromatic sauce.
Whether you prepare it for a special occasion or simply want to elevate your usual dinner routine, this restaurant-inspired recipe delivers impressive flavor without complicated techniques.
For the best results, sear the seafood just before serving, keep the sauce gently simmering, and finish the dish with fresh herbs and a squeeze of lemon.
Enjoy your homemade seafood dinner!