Christmas Seafood Casserole with Lobster

The Story & Intro

There’s something magical about the holidays the twinkling lights, the cozy sweaters, the smell of cinnamon drifting through the house but for me, nothing says Christmas more than a warm, bubbling Christmas Seafood Casserole with Lobster fresh out of the oven. I still remember the first time I made a seafood casserole for Christmas Eve; the kitchen was a happy mess, my apron covered in butter and herbs, and the sound of laughter filled the room. Every year since, it’s become a tradition that brings my family to the table before I can even call them.

And because you know I love sharing a bit of myself with every recipe, here’s that little slice of me you’ll find in all my dishes:

“Bonjour my friends! 👋 I’m Lacamorea, a 31-year-old French girl who traded the cobblestone streets of Paris for the cozy kitchens of America 🇫🇷➡️🇺🇸. Ever since I could reach the countertop, I’ve been whisking, stirring, and sneaking tastes of cake batter when no one was looking 🍰😋. Cooking isn’t just my passion — it’s my love language, my therapy, and my favorite way to make people smile.”

This dish was inspired by the festive dinners I used to enjoy in France elegant, rich, comforting but with an American twist I fell in love with after moving here. And when I say this Christmas Seafood Casserole with Lobster feels luxurious, flavorful, and downright irresistible, I’m not exaggerating.

It’s the kind of dish that makes your guests think you spent hours preparing… even though it’s surprisingly simple. Tender lobster meat, plump shrimp, flaky white fish, velvety cream sauce, golden buttery topping oh la la, mon ami, it’s holiday perfection in a casserole!

⏱️ Time

• Prep: 20 minutes
• Cook: 35 minutes
• Total: 55 minutes

🛒 Ingredients

Seafood Base

• 1 lb cooked lobster meat, chopped
• ½ lb shrimp, peeled and deveined
• ½ lb white fish (cod, haddock, or halibut), cubed
• 1 cup bay scallops (optional but delicious)

Sauce

• 4 tbsp unsalted butter
• 1 small onion, finely diced
• 3 garlic cloves, minced
• ¼ cup all-purpose flour
• 1 ½ cups seafood stock (or chicken broth)
• 1 cup heavy cream
• ½ cup white wine (optional but recommended)
• 1 tsp Old Bay seasoning
• 1 tsp Dijon mustard
• 1 tbsp chopped fresh parsley
• Salt & pepper to taste

Topping

• 1 cup panko breadcrumbs
• 3 tbsp melted butter
• ¼ cup grated Parmesan
• 1 tbsp fresh lemon zest

Optional Add-Ins

• 1 cup cooked pasta
• ½ cup frozen peas
• 1 cup sautéed mushrooms

👩‍🍳 Step-by-Step Instructions

1. Prep the Seafood

If your lobster and shrimp are raw, give them a quick sauté until just pink. Don’t overcook they’ll finish in the oven.

2. Sauté the Aromatics

Melt butter in a large pan, then add onions and cook until soft. Stir in garlic and cook for 1 minute more.

3. Build the Roux

Sprinkle flour over the butter mixture and stir constantly for 1–2 minutes until lightly golden.

4. Add the Liquids

Pour in white wine (if using) and whisk to form a smooth paste. Slowly add seafood stock and heavy cream, whisking until the sauce thickens.

5. Season the Sauce

Add Dijon mustard, Old Bay, parsley, salt, and pepper. Taste and adjust this is your flavor foundation.

6. Combine Seafood & Sauce

Gently fold in lobster, shrimp, fish, and scallops. Add any optional ingredients here.

7. Prepare the Topping

Mix panko, Parmesan, butter, and zest until crumbly.

8. Assemble

Pour the creamy seafood mixture into a casserole dish and sprinkle the topping evenly.

9. Bake

Cook at 375°F for 20–25 minutes, until the top is golden and the edges are bubbling.

10. Rest & Serve

Let it sit 5 minutes… the hardest part! Then serve warm.

Serving Suggestions

This Christmas Seafood Casserole with Lobster is rich enough to be the star, but here’s how to make your holiday table sparkle:

• Serve with buttery garlic bread to scoop up every creamy bite
• Pair with crispy roasted asparagus
• Add a bright citrus winter salad
• For wine lovers: a chilled Chardonnay or Sauvignon Blanc

Pro tip: Garnish with fresh parsley or chives for a pop of Christmas green!

Recipe Card

📖 Christmas Seafood Casserole with Lobster (Printable Recipe)

⏱️ Time

• Prep: 20 min
• Cook: 35 min
• Total: 55 min

🛒 Ingredients
Lobster, shrimp, white fish, butter, cream, wine, stock, flour, onion, garlic, panko, Parmesan, lemon zest, herbs.

👩‍🍳 Instructions

1. Sauté seafood lightly.
2. Make cream sauce with butter, onion, garlic, flour, stock, and cream.
3. Season generously.
4. Fold seafood in.
5. Add topping.
6. Bake until golden.

📝 Notes

• Add pasta for a heartier bake.
• Swap cream for half-and-half to lighten it.
• Topping can be made gluten-free with GF breadcrumbs.

🍽️ Nutrition (Estimated per serving)

• Calories: ~520
• Protein: 32g
• Fat: 36g
• Carbs: 21g

Notes

• Use high-quality lobster meat it makes a HUGE difference
• This dish reheats beautifully (350°F for 10 minutes)
• Can be made earlier in the day and baked before guests arrive
• Add chili flakes if you want a spicy holiday twist
• Freeze without topping for up to 2 months

Nutrition

Seafood casseroles are rich, comforting, and full of protein. Lobster alone provides essential minerals like zinc and selenium, making this a holiday dish that feels indulgent but still nourishing. Enjoy your meal knowing you’re treating yourself and your guests to something truly special.

Conclusion

There’s just something magical about serving a Christmas Seafood Casserole with Lobster during the holidays the aroma, the buttery crunch on top, the tender seafood inside. It’s festive, comforting, and guaranteed to impress everyone at your table. Whether you’re hosting a grand family dinner or preparing something special just for two, this recipe wraps the warmth of the season in every bite.

From my cozy French-American kitchen to yours, joyeux Noël and happy cooking, my friends! 🎄🦞❤️