Paula Deen’s Seafood Casserole Recipe: Creamy Bake With Buttery Breadcrumbs

This seafood bake delivers the creamy comfort Paula Deen is famous for, with a buttery breadcrumb topping that adds the perfect crunch. The combination of shrimp, crab, and fish creates a luxurious texture in every bite.

Simple ingredients come together in this dish to create restaurant-quality results at home, with a rich sauce that binds everything perfectly. The golden breadcrumb crust seals in all the flavors, making it irresistible.

Ingredients for Seafood Casserole Recipe Paula Deen

Luxurious seafood meets creamy comfort with a buttery, crispy finish in every bite.

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The seafood quality is non-negotiable for this dish. Fresh lump crabmeat from a trusted seafood counter ensures sweet, clean flavor, while wild-caught shrimp and firm white fish (cod or haddock work best) provide the ideal texture. For the crab, pasteurized is a safe bet if fresh isn’t available—just pick through for shells. The dairy should be full-fat; Whole Foods or Trader Joe’s carry reliable options for milk and cream.

Substitutions are possible but choose carefully. Imitation crab can replace lump crab in a pinch (use half the amount), though the texture differs. Half-and-half stands in for heavy cream, but the sauce won’t be as rich. For the topping, regular breadcrumbs work if panko isn’t on hand, though the crunch won’t be as pronounced. The Old Bay is key—no direct swap, but a mix of paprika, cayenne, and celery salt gets close.

Assemble and bake immediately for best results, or prep the casserole (unbaked) up to 24 hours ahead and refrigerate. Leftovers keep 3-4 days in the fridge and reheat beautifully. The breadcrumb topping stays crisp if stored separately and added just before serving.

Step-by-Step Instructions for Creamy Seafood Casserole

Master the technique for a luxurious, restaurant-quality dish with perfect texture every time.

Step 1: Prepare the Seafood Base

Preheat your oven to 375°F. In a large skillet, melt ¼ cup of the butter over medium heat. Add the finely diced yellow onion and celery stalks, cooking for 5-6 minutes until softened and translucent. Stir in the minced garlic cloves and cook for an additional 30 seconds until fragrant.

This aromatic base builds the foundation of flavor for your casserole. The onion and celery should be tender but not browned—you want their sweetness to shine through without bitterness. Season with the Old Bay seasoning at this stage to allow its flavors to bloom in the butter.

Step 2: Create the Creamy Sauce

Sprinkle the all-purpose flour over the onion-celery mixture and stir for 1-2 minutes to cook out the raw flour taste. Gradually whisk in the whole milk and heavy cream, ensuring no lumps form. Cook for 3-4 minutes until the mixture thickens and coats the back of a spoon.

Stir in the Dijon mustard and lemon juice, then add the shredded sharp cheddar cheese in ½ cup increments, allowing each addition to melt completely before adding more. The sauce should be smooth, velvety, and rich—this is what makes the dish irresistibly creamy.

Step 3: Combine Seafood and Sauce

Gently fold the shrimp, lump crabmeat, and cubed white fish fillets into the sauce. Take care not to break up the delicate seafood—you want each piece to remain intact. The residual heat from the sauce will begin cooking the seafood slightly, but it will finish in the oven.

Transfer the mixture to a lightly greased 9×13-inch baking dish, spreading it evenly. The seafood should be mostly submerged in the sauce to prevent it from drying out during baking. This step ensures every bite is packed with flavor and moisture.

Step 4: Add the Buttery Breadcrumbs and Bake

Melt the remaining ¼ cup butter and toss it with the panko breadcrumbs until evenly coated. Sprinkle this mixture evenly over the top of the casserole, pressing down lightly to adhere. This creates a crispy, golden crust that contrasts beautifully with the creamy filling.

Bake for 25-30 minutes until the topping is golden brown and the casserole is bubbling at the edges. The internal temperature should reach 165°F in the center. Let it rest for 5 minutes before serving to allow the sauce to set slightly, making it easier to portion.

Regional Styles of This Dish

New England Style

Up north, they love adding fresh lobster meat to their seafood bakes. I use 1 cup of chopped lobster tail in place of half the crabmeat for a sweeter, more decadent version. The buttery lobster pairs beautifully with the creamy sauce. 💛

Southern Comfort

Paula Deen’s Georgia roots show in this version with added ½ cup of shredded Monterey Jack for extra meltiness. Some Southern cooks also stir in 1 tbsp of hot sauce to cut through the richness. I find it adds a nice kick without overpowering.

Gulf Coast Twist

The Gulf version often includes ½ lb of crawfish tails alongside the shrimp and crab. I like to boost the Cajun flavors with 1 tsp of Tony Chachere’s seasoning mixed into the breadcrumbs. The result has a spicy, bold character that’s purely Louisiana.

Pacific Northwest

Out west, they prefer using fresh Dungeness crab and wild salmon instead of cod. I also add 1 tbsp of fresh dill to the sauce for a bright, herbaceous note. The salmon stays moist and flaky in the creamy base.

Lowcountry Variation

In the Carolinas, they often top their casseroles with crushed Ritz crackers instead of panko. I mix in 2 tbsp of melted butter and 1 tsp of smoked paprika for extra depth. The crackers create a finer, more uniform crust.