Cajun Shrimp and Salmon with Creamy Mashed Potatoes and Green Beans

By: CALVIN ROURKE

Published: October 01, 2025

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Why Make This Recipe

Cajun Shrimp and Salmon with Garlic Cream Sauce, Mashed Potatoes, and Green Beans is not just a meal; it’s an experience. This delightful dish combines the bold flavors of Cajun cuisine with the smoothness of a garlic cream sauce. Whether it’s for a special occasion or just a regular weeknight dinner, this recipe will surely impress your family and friends with its vibrant flavors and beautiful presentation.

How to Make Cajun Shrimp and Salmon with Garlic Cream Sauce, Mashed Potatoes, and Green Beans

Ingredients:

  • 4 large shrimp, peeled and deveined
  • 2 salmon fillets (6 oz each), skin on or off depending on preference
  • 2 tablespoons Cajun seasoning: A blend of paprika, cayenne, garlic powder, onion powder, thyme, and oregano for bold, spicy flavor.
  • 1 tablespoon olive oil: For searing the shrimp and salmon.
  • 1 tablespoon butter: To add flavor when cooking the seafood.
  • 1 tablespoon butter: For sautéing garlic and creating the base for the cream sauce.
  • 3 cloves garlic, minced: Fresh garlic brings an aromatic base to the sauce.
  • 1 cup heavy cream: For a rich, velvety texture.
  • 1/4 cup chicken broth: To thin the sauce slightly and enhance the flavor.
  • 1 teaspoon Dijon mustard: Adds a tangy flavor that complements the creaminess.
  • 1/4 teaspoon salt: To taste.
  • 1/4 teaspoon freshly ground black pepper: To taste.
  • 1/4 teaspoon smoked paprika: For a smoky depth to the sauce.
  • 4 medium russet potatoes, peeled and cut into chunks
  • 1/2 cup milk: For a smooth, creamy consistency.
  • 1/4 cup butter: To add richness and flavor to the mashed potatoes.
  • Salt and pepper: To taste.
  • 1 pound fresh green beans, trimmed
  • 2 tablespoons butter: To sauté the green beans.
  • 2 cloves garlic, minced: For flavor.
  • 1/4 teaspoon red pepper flakes (optional): For a little extra heat and flavor.
  • Salt and pepper: To taste.

Directions:

  1. Start by peeling and cutting the russet potatoes into even chunks. Add them to a large pot of salted water and bring to a boil over high heat. Let the potatoes cook for 15-20 minutes, or until they are fork-tender and can be easily pierced with a knife.
  2. Once the potatoes are tender, drain them in a colander and return them to the pot. Begin mashing the potatoes with a potato masher or a hand mixer until smooth.
  3. While mashing, add the butter and milk. Continue mashing until the potatoes are creamy and smooth. Season with salt and pepper to taste. Cover the mashed potatoes and set them aside to keep warm while you prepare the seafood and green beans.
  4. Pat the shrimp and salmon fillets dry with paper towels to remove any excess moisture. Season both sides of the shrimp and salmon fillets generously with Cajun seasoning.
  5. Heat the olive oil in a large skillet over medium-high heat. Once the oil is hot, add the shrimp in a single layer. Cook the shrimp for 2-3 minutes on each side, or until they turn pink and opaque. Remove the shrimp from the skillet and set aside.
  6. In the same skillet, add the butter and let it melt. Once the butter is melted, add the salmon fillets, skin side down if the skin is on. Cook the salmon for 4-5 minutes on each side, or until it is cooked through and flakes easily with a fork. Remove the salmon from the skillet and set aside with the shrimp.
  7. In the same skillet used for the shrimp and salmon, melt 1 tablespoon of butter over medium heat. Add the minced garlic and sauté for 1-2 minutes, or until fragrant and golden.
  8. Add the heavy cream, chicken broth, Dijon mustard, salt, black pepper, and smoked paprika to the skillet. Stir to combine and bring the mixture to a simmer. Let the sauce cook for 4-5 minutes, or until it thickens slightly.
  9. Once the sauce has thickened, taste and adjust the seasoning as needed. If the sauce is too thick, you can add a little more chicken broth to reach your desired consistency.
  10. Once the sauce is ready, return the cooked shrimp and salmon fillets to the skillet. Spoon the sauce over the seafood to coat, and let everything simmer together for an additional 2-3 minutes.
  11. Bring a large pot of salted water to a boil. Add the green beans and cook for 3-4 minutes, or until they are tender-crisp. Drain the green beans and set them aside.
  12. In a large skillet, melt the butter over medium heat. Add the minced garlic and red pepper flakes (if using), and sauté for 1-2 minutes, or until the garlic is fragrant.
  13. Add the cooked green beans to the skillet, tossing to coat them in the butter and garlic. Sauté the green beans for 3-4 minutes, or until they are slightly caramelized and heated through. Season with salt and pepper to taste.
  14. To plate, scoop a generous portion of mashed potatoes onto each plate. Top the potatoes with a salmon fillet and a few Cajun shrimp. Spoon the garlic cream sauce over the seafood and mashed potatoes.
  15. Place a portion of sautéed green beans on the side of the plate, and garnish the dish with fresh herbs or lemon wedges if desired. Serve immediately and enjoy the explosion of bold flavors and comforting textures in this delicious meal!

How to Serve Cajun Shrimp and Salmon with Garlic Cream Sauce, Mashed Potatoes, and Green Beans

Serve this dish hot on a warm plate to keep all the flavors intact. Pair it with a light salad or crusty bread for a complete meal. You can also add a glass of white wine to elevate the dining experience further.

How to Store Cajun Shrimp and Salmon with Garlic Cream Sauce, Mashed Potatoes, and Green Beans

If you have leftovers, store them in an airtight container in the refrigerator for up to 2 days. Reheat in the microwave or on the stovetop until warmed through.

Tips to Make Cajun Shrimp and Salmon with Garlic Cream Sauce, Mashed Potatoes, and Green Beans

  • Use fresh ingredients for the best flavor, especially the seafood and herbs.
  • Adjust the amount of Cajun seasoning based on your spice preference.
  • For an extra kick, add some lemon juice to the garlic cream sauce before serving.

Variation

For a lighter version, you can substitute the heavy cream with half-and-half or light cream. You can also use other vegetables, such as asparagus, instead of green beans.

FAQs

1. Can I use frozen shrimp and salmon?
Yes, frozen seafood can be used. Just ensure to thaw them properly before cooking.

2. Can I make the garlic cream sauce ahead of time?
It’s best to make it fresh for the best texture, but you can prepare the basic sauce and store it in the fridge for a day.

3. Is this recipe suitable for meal prep?
Yes, you can prepare the components of the dish separately and combine them when ready to heat and serve.

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Cajun Shrimp and Salmon with Creamy Mashed Potatoes and Green Beans

A delightful dish combining the bold flavors of Cajun cuisine with a smooth garlic cream sauce. Perfect for special occasions or weeknight dinners.

Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
  • By: Calvin Rourke
  • Category: DINNER
  • Difficulty: Not specified
  • Cuisine: Not specified
  • Yield: 4 Servings
  • Dietary: None

Ingredients

  • 01 4 large shrimp, peeled and deveined
  • 02 2 salmon fillets (6 oz each), skin on or off
  • 03 2 tablespoons Cajun seasoning
  • 04 1 tablespoon olive oil
  • 05 1 tablespoon butter (for seafood)
  • 06 1 tablespoon butter (for sauce)
  • 07 3 cloves garlic, minced
  • 08 1 cup heavy cream
  • 09 1/4 cup chicken broth
  • 10 1 teaspoon Dijon mustard
  • 11 1/4 teaspoon salt
  • 12 1/4 teaspoon freshly ground black pepper
  • 13 1/4 teaspoon smoked paprika
  • 14 4 medium russet potatoes, peeled and cut into chunks
  • 15 1/2 cup milk
  • 16 1/4 cup butter (for mashed potatoes)
  • 17 Salt and pepper, to taste
  • 18 1 pound fresh green beans, trimmed
  • 19 2 tablespoons butter (for green beans)
  • 20 2 cloves garlic, minced
  • 21 1/4 teaspoon red pepper flakes (optional)

Instructions

Step 01

1. Boil potatoes in salted water for 15-20 minutes until fork-tender; drain and mash with butter and milk, seasoning to taste.

Step 02

2. Pat shrimp and salmon dry, then season with Cajun seasoning.

Step 03

3. Heat olive oil in a skillet, cooking shrimp for 2-3 minutes on each side; remove and set aside.

Step 04

4. Add butter to the same skillet, cooking the salmon for 4-5 minutes on each side; remove and set aside.

Step 05

5. Sauté minced garlic in melted butter for 1-2 minutes.

Step 06

6. Add heavy cream, chicken broth, Dijon mustard, salt, pepper, and smoked paprika; simmer until thickened.

Step 07

7. Return shrimp and salmon to the skillet, spooning sauce over them and simmering for an additional 2-3 minutes.

Step 08

8. Boil green beans in salted water for 3-4 minutes; drain and set aside.

Step 09

9. Melt butter in a skillet, sauté garlic and red pepper flakes, then toss in green beans, cooking until slightly caramelized.

Step 10

10. Plate mashed potatoes, top with seafood and sauce, and serve green beans on the side.