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Creamy Crab and Shrimp Casserole That's Pure Comfort Delight

Published: Feb 2, 2026 by Chef Sarah · This post may contain affiliate links ·

The moment you crack open the oven door, the warm aroma of melted cheese and savory seafood fills the air. My Crab and Shrimp Casserole is like a cozy hug on a plate, mixing sweet crab meat and succulent shrimp with a creamy, cheesy sauce. It’s a dish that brings comfort, perfect for family gatherings or special dinners.

Discover the Joy of Seafood Comfort Food

This casserole stands out with its rich textures and vibrant flavors, making it a true crowd-pleaser. Easy to prepare, it ensures you can focus on the moments that matter—like sharing laughs around the table. Even non-seafood lovers might find themselves craving seconds!

Get ready for a delightful culinary experience that warms the heart!

Crab and Shrimp Casserole - Ingredients prepared

Why you'll love Crab and Shrimp Casserole

Imagine the first forkful of creamy Crab and Shrimp Casserole melting in your mouth, with deliciously sweet crab meat and tender shrimp enveloped in a rich, cheesy sauce. Each bite delivers comforting warmth, while the crispy breadcrumb topping adds a delightful crunch. Perfect for family gatherings or quiet nights in, this dish brings everyone together, igniting joy and connection. It's simple to make, ensuring you spend less time in the kitchen and more time enjoying the company of loved ones. With flavors so vibrant, even those less fond of seafood will be asking for a second helping. Dive into this culinary experience that truly makes every meal special!

Ingredients for Crab and Shrimp Casserole

Imagine the aroma of warm, cheesy goodness filling your kitchen as this creamy Crab and Shrimp Casserole bakes to perfection, enticing everyone to the table.

  • Shrimp: 1 lb, peeled and deveined – fresh shrimp adds a succulent texture.
  • Crabmeat: 1 lb, fresh or canned – provides a sweet, delicate flavor to the casserole.
  • Celery: 1 cup, diced – adds crunch and freshness to the mix.
  • Onion: ½ cup, diced – gives a savory aromatic base for the sauce.
  • Garlic: 2 cloves, minced – enhances overall flavor with its aromatic kick.
  • Butter: 2 tablespoons – for a rich, flavorful roux in the creamy sauce.
  • All-purpose flour: 2 tablespoons – thickens the sauce; use a gluten-free blend for an alternative.
  • Milk: 1 cup – makes the sauce creamy and luscious; whole milk is recommended.
  • Mayonnaise: ½ cup – adds richness and depth; can substitute with Greek yogurt.
  • Sharp cheddar cheese: 1 cup, grated – melts beautifully, providing that comforting cheesy bliss.
  • Breadcrumbs: ½ cup – forms a golden, crispy topping; panko works great for extra crunch.
  • Salt: 1 pinch – to taste, enhances the flavors of the dish.
  • Pepper: 1 pinch – a touch of warmth; adjust to your taste preference.
  • Fresh parsley: 1 tablespoon, chopped – for garnish, adds a splash of color and freshness.

Now you're ready to dive into the culinary joy of this delicious Crab and Shrimp Casserole!

How to Make Crab and Shrimp Casserole

  1. Preheat: Set your oven to 350°F (175°C) to create the perfect baking environment while you prepare the ingredients.
  2. Mix: In a large bowl, combine the shrimp, crabmeat, diced celery, onion, and minced garlic. Toss gently until the seafood is evenly mixed.
  3. Melt: Heat the butter in a medium saucepan over medium heat. Swirl until melted and bubbly, about 1-2 minutes.
  4. Whisk: Stir in the flour, cooking until golden and fragrant. Gradually whisk in the milk for a creamy mixture, thickening in about 3-5 minutes.
  5. Blend: Remove the pan from heat. Stir in the mayonnaise, sharp cheddar cheese, salt, and pepper, creating a luscious cheese sauce.
  6. Combine: Fold the seafood mixture into the cheese sauce, ensuring each piece is coated and ready for baking.
  7. Spread: Pour the mixture into a greased 9x13-inch baking dish, leveling it out for even cooking.
  8. Top: Evenly sprinkle breadcrumbs over the casserole, adding a crispy texture that bakes to perfection.
  9. Bake: Place the dish in the oven and bake for 30 minutes, or until the top is bubbly and a beautiful golden brown.
  10. Garnish: After removing from the oven, let the casserole sit for a few minutes. Top with chopped fresh parsley for a pop of color.

💡 Pro Tip: For an added twist, mix in your favorite vegetables like bell peppers or mushrooms for extra flavor and texture!

Now you're ready to savor the warm goodness of your Crab and Shrimp Casserole!

Crab and Shrimp Casserole - Finished dish plated beautifully

Variations and Substitutions for Crab and Shrimp Casserole

  • Gluten-Free Version: Swap the all-purpose flour for a gluten-free flour blend to enjoy a dish that everyone can savor without gluten worries.
  • Cheese Lover's Delight: Experiment with different cheeses like creamy Gruyère or tangy feta for a new flavor twist that elevates the cheesy experience.
  • Spicy Kick: Add a dash of cayenne pepper or diced jalapeños to the mixture for a zesty heat that tantalizes your taste buds.
  • Vegetable Boost: Toss in diced bell peppers, spinach, or artichokes to enhance texture and flavor, making your Crab and Shrimp Casserole even more comforting and delightful.
  • Seafood Medley: Switch out shrimp or crab for scallops, lobster, or even cooked white fish for a luxurious seafood blend that brings the ocean directly to your table.

Now that you’ve customized your recipe, let’s explore how to serve it best!

Expert Tips for Crab and Shrimp Casserole

These essential tips will elevate your Crab and Shrimp Casserole into a dish that's both delicious and unforgettable.

  • Stir continuously: When making the cheese sauce, keep whisking to avoid lumps and ensure a smooth, creamy texture.
  • Let it rest: Allow the casserole to sit for 5-10 minutes after baking — this helps it set and makes serving easier.
  • Extra vegetables: Incorporate bell peppers, spinach, or mushrooms for added flavor and nutrition — they blend beautifully with the seafood.
  • Panko topping: Use panko breadcrumbs for a crunchier, golden finish that adds delightful texture to every bite.
  • Select fresh seafood: Choose high-quality shrimp and crab to infuse maximum flavor and tenderness in your casserole.

With these tips, you're on your way to creating a memorable seafood dish that everyone will love!

What to Serve with Crab and Shrimp Casserole

Your Crab and Shrimp Casserole is a delightful centerpiece that warms hearts and bellies, making it perfect for sharing with loved ones.

  • Fresh garden salad: A crisp mix of greens with a zesty vinaigrette balances the casserole’s creamy richness beautifully.
  • Garlic bread: Warm, toasted garlic bread with a buttery finish is perfect for scooping up the luscious, cheesy goodness.
  • Steamed asparagus: Tender, vibrant asparagus adds a fresh, crunchy element that complements the dish’s savory flavors.
  • Crisp white wine: A chilled, refreshing glass of Sauvignon Blanc enhances the seafood while brightening the entire meal experience.

Now that you know how to enjoy it, let’s explore some common questions about this dish!

Storage Tips for Crab and Shrimp Casserole

Proper storage ensures your delicious Crab and Shrimp Casserole stays fresh and flavorful, ready to be enjoyed for days to come.

  • Room temperature: To maintain safety, enjoy within two hours of baking; any longer can affect freshness.
  • Refrigerator: Store in an airtight container for up to 3-4 days; the flavors meld beautifully as it sits.
  • Freezer: Keep in an airtight container for up to 2 months for a comforting meal anytime — just reheat and savor!
  • Reheating: Heat in the oven at 350°F until warmed through; this helps retain that creamy texture.

Now that you know how to store it, let’s talk about serving suggestions!

Crab and Shrimp Casserole - Close-up of delicious texture

Crab and Shrimp Casserole Recipe FAQs

Can you freeze Crab and Shrimp Casserole?
Absolutely! You can freeze the casserole in an airtight container for up to 2 months. Just thaw it in the fridge overnight before reheating to enjoy that creamy goodness again.

How long does Crab and Shrimp Casserole last in the fridge?
In an airtight container, your delicious casserole will stay fresh for about 3-4 days. It's perfect for leftover lunches or quick dinners!

Can I make Crab and Shrimp Casserole gluten-free?
Definitely! Simply substitute the all-purpose flour with a gluten-free flour blend, and you’re good to go. It still delivers that creamy texture and rich flavor you love!

What should I serve with Crab and Shrimp Casserole?
This casserole pairs beautifully with a fresh green salad or steamed vegetables for a balanced meal. A crisp white wine or iced tea also makes it feel extra special!

Can I add extra vegetables to the Crab and Shrimp Casserole?
Yes! Feel free to mix in bell peppers, spinach, or mushrooms for added flavor and nutrition. They complement the seafood wonderfully and make it even heartier.

Excited to make this cozy Crab and Shrimp Casserole? Let the cooking magic begin!


Crab and Shrimp Casserole

Creamy Crab and Shrimp Casserole That's Pure Comfort Delight

Indulge in this Crab and Shrimp Casserole, a rich blend of seafood and creamy cheese that guarantees comfort at the dinner table.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 30 minutes mins
Total Time 45 minutes mins
Servings: 6 servings
Course: Dinner
Cuisine: Seafood
Calories: 410
Ingredients Equipment Method Nutrition Notes

Ingredients
  

  • 1 lb shrimp peeled and deveined
  • 1 lb crabmeat fresh or canned
  • 1 cup celery diced
  • ½ cup onion diced
  • 2 cloves garlic minced
  • 2 tablespoon butter for the sauce
  • 2 tablespoon all-purpose flour for the roux
  • 1 cup milk whole milk recommended
  • ½ cup mayonnaise
  • 1 cup sharp cheddar cheese grated
  • ½ cup breadcrumbs for topping
  • 1 pinch salt to taste
  • 1 pinch pepper to taste
  • 1 tablespoon fresh parsley chopped, for garnish

Equipment

  • Oven
  • Medium saucepan
  • Large Mixing Bowl
  • 9×13-inch baking dish

Method
 

Preparation Steps
  1. Preheat your oven to 350°F (175°C).
  2. In a large bowl, combine the shrimp, crabmeat, diced celery, onion, and minced garlic. Toss gently until the seafood is evenly mixed.
  3. Heat the butter in a medium saucepan over medium heat. Swirl until melted and bubbly, about 1-2 minutes.
  4. Stir in the flour, cooking until golden and fragrant. Gradually whisk in the milk for a creamy mixture, thickening in about 3-5 minutes.
  5. Remove the pan from heat. Stir in the mayonnaise, sharp cheddar cheese, salt, and pepper, creating a luscious cheese sauce.
  6. Fold the seafood mixture into the cheese sauce, ensuring each piece is coated and ready for baking.
  7. Pour the mixture into a greased 9x13-inch baking dish, leveling it out for even cooking.
  8. Evenly sprinkle breadcrumbs over the casserole, adding a crispy texture that bakes to perfection.
  9. Place the dish in the oven and bake for 30 minutes, or until the top is bubbly and a beautiful golden brown.
  10. After removing from the oven, let the casserole sit for a few minutes. Top with chopped fresh parsley for a pop of color.

Nutrition

Serving: 1servingCalories: 410kcalCarbohydrates: 24gProtein: 30gFat: 25gSaturated Fat: 12gPolyunsaturated Fat: 2gMonounsaturated Fat: 8gCholesterol: 150mgSodium: 600mgPotassium: 450mgFiber: 1gSugar: 3gVitamin A: 300IUVitamin C: 2mgCalcium: 250mgIron: 2mg

Notes

For added flavor, mix in vegetables like bell peppers or mushrooms. Use panko breadcrumbs for a crunchier topping.

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Let us know how it was!

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Heyn I'm Chef Sarah

Chef Sarah | Recipe Chef
I share delicious, easy-to-make recipes for every home cook. From quick weeknight dinners to tasty family favorites, my goal is to inspire your kitchen with flavor, creativity, and simple steps that anyone can follow. 🍴✨

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