Paula Deen’s Seafood Casserole Recipe: Creamy Southern Comfort Bake

Southern comfort food doesn’t get more satisfying than this seafood casserole, where tender shrimp and sweet crab swim in a velvety sauce beneath a golden cracker crust. This is the kind of dish that turns weeknight dinners into something special, with layers of rich flavor that feel like a hug on a plate.

The secret lies in Paula Deen’s signature approach—generous butter, quality seafood, and a perfect balance of creamy and crunchy textures. Baked until bubbling and golden, this casserole delivers restaurant-quality results with the ease of home cooking. Every bite offers that perfect harmony of tender seafood, creamy sauce, and buttery topping.

Ingredients for Seafood Casserole Recipe Paula Deen

This Southern seafood casserole combines premium crab, plump shrimp, and a velvety sauce under buttery cracker topping.

The seafood quality determines this dish’s success. Jumbo lump crabmeat from Harris Teeter or Whole Foods delivers the sweetest flavor, while wild-caught shrimp (16/20 count) ensures proper texture. For the butter, Plugrá European-style creates the richest sauce foundation. Avoid pre-shredded cheese—block cheddar melts smoothly without additives. The Ritz crackers must be fresh; stale crackers create a soggy topping rather than the signature crunch.

Substitutions require careful balance. Imitation crab lacks authentic flavor but works in a pinch, while frozen shrimp (thawed properly) maintains integrity. For a lighter version, half-and-half replaces heavy cream, though the sauce won’t be as velvety. Saltine crackers can substitute for Ritz but offer less buttery richness. The Worcestershire sauce is essential—Annie’s Naturals makes an anchovy-free version that preserves the umami depth without compromising dietary preferences.

Optimal preparation involves strategic timing. The casserole holds beautifully at room temperature for 2 hours before baking. Leftovers maintain quality refrigerated for 3 days (reheat gently at 325°F). For make-ahead convenience, assemble completely without baking, then refrigerate overnight. The unbaked casserole freezes well for 1 month—thaw overnight before baking as directed.

Instructions

This Southern-inspired casserole comes together through careful layering and precise timing for maximum creaminess and flavor.

Step 1: Prepare the Seafood and Vegetable Base

Preheat your oven to 375°F. In a large skillet over medium heat, melt 0.75 cup unsalted butter. Add the finely diced yellow onion and small-diced celery stalks, cooking for 5-6 minutes until softened but not browned.

Stir in the minced garlic cloves and cook for 30 seconds until fragrant. Add the 1 lb large shrimp and cook just until they turn pink, about 2-3 minutes. Remove from heat and gently fold in the 1 lb jumbo lump crabmeat, being careful not to break up the delicate lumps. This quick cooking preserves the seafood’s natural sweetness.

Step 2: Create the Creamy Sauce Foundation

Sprinkle the 0.5 cup all-purpose flour over the seafood mixture and stir to coat evenly. Cook for 1-2 minutes to remove the raw flour taste. Gradually whisk in the 1.5 cups whole milk and 1 cup heavy cream until smooth.

Stir in the 1 tbsp Worcestershire sauce, 1 tbsp Dijon mustard, 1 tsp Old Bay seasoning, 1.5 tsp kosher salt, and 0.5 tsp freshly ground black pepper. Simmer for 3-4 minutes until the sauce begins to thicken and coats the back of a spoon. The sauce should be velvety but still pourable.

Step 3: Assemble the Casserole Layers

Transfer the seafood mixture to a greased 9×13-inch baking dish. Sprinkle 1 cup of the sharp cheddar cheese evenly over the top. This layer will melt into the sauce, creating that signature creamy texture throughout the casserole.

In a separate bowl, combine the remaining 1 cup sharp cheddar cheese with the 2 cups crushed Ritz crackers. This topping will provide both crunch and rich cheesy flavor. The contrast between the creamy interior and crispy topping is what makes this dish special.

Step 4: Bake to Golden Perfection

Sprinkle the cracker-cheese mixture evenly over the casserole. Bake at 375°F for 25-30 minutes until the topping is golden brown and the edges are bubbling. The casserole is done when the center is set but still slightly jiggly.

Let the casserole rest for 5-10 minutes before serving. This brief rest allows the sauce to thicken slightly and makes serving easier. The internal temperature should reach 165°F for food safety while maintaining the seafood’s tender texture.

Storing and Reheating seafood casserole recipe paula deen

Refrigerator Storage

After your casserole cools to room temperature (about 2 hours), transfer it to an airtight container or cover the baking dish tightly with plastic wrap. It’ll keep beautifully in the fridge for up to 3 days. I actually think the flavors deepen overnight as the seafood absorbs more of that creamy sauce. 💛

Freezer Storage

For longer storage, wrap individual portions tightly in heavy-duty aluminum foil then place in a freezer bag. This casserole freezes well for up to 2 months without losing quality. Just be sure to label with the date—I use Sharpie markers on masking tape for easy identification.

Reheating from Fridge

Preheat your oven to 350°F and place the chilled casserole in a baking dish. Cover with foil and warm for 15-20 minutes, then uncover and bake 5 more minutes to crisp the topping. Add a splash of milk if it seems dry—I usually use about 2 tbsp per serving.

Reheating from Frozen

Thaw overnight in the fridge, then follow the refrigerated reheating method. If you’re in a hurry, use the microwave’s defrost setting for 5-7 minutes, then transfer to the oven. The texture stays best with oven reheating, but I won’t judge if you microwave—just cover with a damp paper towel!

Make-Ahead Tips

You can assemble this casserole completely (without baking) up to 24 hours ahead. Cover tightly and refrigerate. When ready, bake as directed, adding 5-10 extra minutes since it’ll start cold. This makes holiday entertaining so much easier—I always prep mine the night before big gatherings.

Serving Leftovers

Leftovers make fantastic lunches! Pack portions in microwave-safe containers with a small ice pack. At work, reheat on 50% power for 2-3 minutes, stirring halfway. The flavors taste even richer the next day, and the seafood stays tender if you don’t overheat it. 🔥

Frequently Asked Questions