If you’re in the mood for a seafood dish that’s both decadent and comforting, then this Crab and Shrimp Casserole is exactly what you need. Imagine tender shrimp and sweet crab meat baked together in a rich, creamy sauce, all topped with a crispy, golden breadcrumb topping. It’s like a cozy seafood hug in every bite. Whether you’re entertaining guests or just craving something extra special, this casserole will quickly become a favorite. Let’s dive into this delicious, indulgent dish!
Why You’ll Love Crab and Shrimp Casserole
Here’s why this casserole is about to become your go-to recipe:
- Seafood Delight: This casserole combines the best of both worlds with succulent shrimp and sweet, flaky crab, creating a perfectly balanced seafood dish.
- Creamy Comfort: The rich, creamy sauce gives each bite a luxurious feel, making it feel like a special treat without much effort.
- Perfect for Entertaining: Serving this casserole at a dinner party or family gathering will definitely impress your guests. It’s a showstopper that looks as amazing as it tastes.
- Easy to Make: Despite how fancy it sounds, this casserole is surprisingly easy to put together. You won’t need any fancy skills—just simple ingredients and a little love!
- Great Leftovers: It stores well and makes for amazing leftovers the next day. You’ll be eagerly waiting to enjoy it all over again!

Ingredients
Let’s look at what you’ll need to make this creamy, seafood-filled casserole:
Shrimp
The star of the dish! Tender shrimp are a perfect match for the creamy sauce and provide a satisfying bite in every forkful.
Crab Meat
Sweet and flaky crab meat adds a rich flavor that takes this casserole to the next level. You can use fresh, frozen, or even canned crab meat, depending on what’s available to you.
Cream of Mushroom Soup
The base of this casserole’s creamy sauce. It gives a rich, comforting texture that perfectly complements the seafood.
Mayonnaise
Mayonnaise adds a smooth richness to the sauce, creating the perfect creamy base for the shrimp and crab to shine.
Cheddar Cheese
Sharp cheddar cheese melts into the sauce, adding a cheesy depth that brings everything together.
Bread Crumbs
Bread crumbs create a lovely golden, crispy topping that contrasts wonderfully with the creamy filling underneath.
Garlic Powder & Onion Powder
These seasonings bring a savory, aromatic base that enhances the overall flavor of the casserole.
Lemon Juice
A little squeeze of fresh lemon juice brightens up the richness and adds a refreshing touch to balance the flavors.
(Note: The full ingredient list, including measurements, is provided in the recipe card directly below.)
Instructions
Let’s get cooking! Here’s how to make this delicious casserole:
Preheat the Oven
Preheat your oven to 350°F (175°C). This will ensure the casserole bakes evenly and becomes nice and golden.
Prepare the Seafood
If using frozen shrimp, make sure to thaw them completely and drain off any excess water. Chop the shrimp into bite-sized pieces. If using canned crab, drain and flake it lightly with a fork.
Make the Creamy Sauce
In a large bowl, combine the cream of mushroom soup, mayonnaise, garlic powder, onion powder, and a squeeze of lemon juice. Mix well until everything is smooth and combined.
Combine the Seafood and Sauce
Gently fold the shrimp and crab meat into the creamy sauce, making sure all the seafood is coated evenly. Be careful not to break up the crab too much!
Transfer to a Baking Dish
Transfer the seafood and sauce mixture into a greased 9×13-inch baking dish. Spread it out evenly, ensuring it’s all nicely layered.
Top with Cheese and Bread Crumbs
Sprinkle shredded cheddar cheese evenly over the top of the casserole, then top with a generous layer of breadcrumbs.
Bake to Perfection
Bake for 25-30 minutes, or until the top is golden and crispy and the casserole is bubbling around the edges. You’ll know it’s done when the cheese is melted and the breadcrumbs are perfectly browned.
Serve and Enjoy
Once baked, remove the casserole from the oven and let it sit for a few minutes. Serve it warm, and enjoy every bite of this indulgent, comforting dish!
Nutrition Facts
Servings: 6
Calories per serving: 330
Preparation Time
Prep Time: 15 minutes
Cook Time: 25-30 minutes
Total Time: 40-45 minutes
How to Serve Crab and Shrimp Casserole
This seafood casserole pairs perfectly with a variety of sides. Here are some ideas to enhance your meal:
- Garlic Bread: Serve this casserole with a warm loaf of garlic bread to soak up the creamy sauce.
- Green Salad: Pair it with a crisp, fresh salad dressed in a light vinaigrette to balance out the richness of the dish.
- Roasted Vegetables: Roasted vegetables like asparagus, broccoli, or green beans are excellent side dishes to serve with this casserole.
- Rice or Pasta: If you want to make it a heartier meal, serve the casserole over a bed of rice or alongside some buttery pasta.
Additional Tips
- Make it Ahead: You can prep this casserole a day in advance and store it in the refrigerator. Just bake it right before serving for a no-stress dinner.
- Add More Veggies: Feel free to add sautéed spinach, mushrooms, or bell peppers to the casserole for extra flavor and color.
- Spice It Up: If you like a little heat, add a pinch of red pepper flakes or some hot sauce to the creamy mixture for a zesty kick.
- Use Fresh Herbs: Garnish with fresh herbs like parsley or dill for added freshness and a pop of color.
FAQ Section
Q1: Can I use frozen crab meat?
A1: Yes, frozen crab meat works just fine! Just make sure it’s thawed and drained before using.
Q2: Can I substitute the cream of mushroom soup with something else?
A2: Absolutely! You can substitute the cream of mushroom soup with cream of celery or even a homemade cream sauce if you prefer.
Q3: Can I make this recipe ahead of time?
A3: Yes! You can assemble the casserole a day before and store it in the refrigerator. Just bake it when you’re ready to serve.
Q4: Can I freeze the casserole?
A4: Yes, this casserole freezes really well. After assembling, cover it tightly with foil and freeze for up to 3 months. Thaw in the fridge overnight before baking.
Q5: How do I store leftovers?
A5: Store any leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F (175°C) for 10-15 minutes, or until heated through.
Q6: Can I use a different type of seafood?
A6: Yes! Feel free to swap out the crab and shrimp for lobster, scallops, or a mix of different seafood. Just make sure the seafood is cooked and cut into bite-sized pieces.
Q7: Can I make this casserole without mayonnaise?
A7: Yes, you can substitute the mayonnaise with sour cream or Greek yogurt for a slightly tangy twist.
Q8: Can I add cheese to the filling?
A8: Absolutely! Adding some cheese to the creamy mixture can make the casserole even more decadent. Try a bit of mozzarella or fontina for a different cheesy flavor.
Q9: Is this recipe gluten-free?
A9: To make this casserole gluten-free, simply swap the breadcrumbs for gluten-free breadcrumbs or crushed gluten-free crackers.
Q10: Can I make this recipe spicier?
A10: Yes! Add some diced jalapeños or a pinch of cayenne pepper to the mixture to add some heat and spice.
Conclusion
Crab and Shrimp Casserole is the perfect combination of creamy, cheesy, and seafood goodness. Whether you’re entertaining or just treating yourself to something special, this dish is sure to impress. It’s easy to make, full of flavor, and comfort in a casserole dish. Give it a try, and you’ll see why it’s a recipe that will have everyone coming back for seconds!
PrintThis Crab and Shrimp Casserole is a seafood lover’s dream! Packed with tender shrimp, crabmeat, and a creamy, cheesy sauce, this casserole is baked to perfection for a golden, bubbly finish. Perfect for a family dinner or special occasion!
- Prep Time: 15 minutes
- Cook Time: 30minutes
- Total Time: 50 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: baking
- Cuisine: American
Ingredients
- 1 lb shrimp, peeled and deveined
- 1 lb crabmeat (fresh or canned)
- 1 cup celery, diced
- 1/2 cup onion, diced
- 2 cloves garlic, minced
- 2 tbsp butter
- 2 tbsp all-purpose flour
- 1 cup milk
- 1/2 cup mayonnaise
- 1 cup sharp cheddar cheese, grated
- 1/2 cup breadcrumbs
- Salt and pepper to taste
- Fresh parsley, chopped (for garnish)
Instructions
Step 1: Preheat and Prep
- Preheat your oven to 350°F (175°C).
- In a large mixing bowl, combine the shrimp, crabmeat, diced celery, onion, and minced garlic.
Step 2: Make the Sauce
- In a saucepan, melt the butter over medium heat.
- Stir in the flour to create a roux, then gradually whisk in the milk until the mixture thickens.
- Remove from heat and stir in the mayonnaise and grated cheddar cheese until smooth.
- Season with salt and pepper to taste.
Step 3: Combine and Bake
- Fold the seafood mixture into the sauce, then transfer the mixture to a greased baking dish.
- Sprinkle the breadcrumbs evenly over the top of the casserole.
- Bake for 30 minutes, or until the top is golden and bubbly.
Step 4: Garnish and Serve
- Remove from the oven and garnish with freshly chopped parsley.
- Serve hot and enjoy!
Notes
- You can use a mix of crabmeat and shrimp or add other seafood, like scallops, for variety.
- For a lighter version, substitute the mayonnaise with Greek yogurt or sour cream.
- Add a squeeze of lemon juice before serving for an extra burst of freshness.
Nutrition
- Serving Size: 1 serving
- Calories: 450 kcal
- Sugar: 4g
- Sodium: 700mg25
- Fat: 25g
- Saturated Fat: 10g
- Unsaturated Fat: 12g
- Trans Fat: 1g
- Carbohydrates: 18g
- Fiber: 2g
- Protein: 34g
- Cholesterol: 150mg