Baked Seafood Casserole with Garlic Cream Sauce is a creamy, oven-baked dish featuring tender seafood, stuffed pasta shells, and a rich, garlicky Parmesan sauce. It combines shrimp, lobster, and crab with spinach and cheese for a comforting, restaurant-quality meal made at home. The casserole bakes until it bubbles and turns lightly golden, delivering bold flavor and a smooth, velvety texture in every bite.
| Prep Time | 25 minutes |
| Cook Time | 35 minutes |
| Total Time | 60 minutes |
| Servings | 6 |
| Difficulty | Intermediate |
| Cuisine | American Seafood |
This baked seafood casserole with garlic cream sauce brings comfort and nostalgia in every bite. I first made a version of this dish in a tiny Queens kitchen, learning how simple ingredients could turn into something special with care and patience.
Hi! I’m Lina Rose, a New Yorker with a big sweet tooth and a love for cozy kitchen moments. I believe cooking should feel like a hug, fun, simple, and delicious. My journey began in a tiny Queens apartment with my grandma’s handwritten recipes and a toaster oven. At Globe Recipe, I share beginner-friendly, feel-good recipes from quick meals to no-fuss desserts, with step-by-step guidance and lots of encouragement.
Table of Contents
Table of Contents
Baked Seafood Casserole with Garlic Cream Sauce
- Total Time: 60 minutes
- Yield: 6 servings 1x
Description
Baked Seafood Casserole with Garlic Cream Sauce is a creamy, comforting dinner made with shrimp, lobster, crab, stuffed shells, spinach, and a rich garlic Parmesan sauce.
Ingredients
1 1/2 tbsp butter, divided
1 tbsp all-purpose flour
1/2 cup heavy cream
1/2 cup almond milk
1/4 cup chicken or seafood broth
3 cloves garlic, minced
3/4 cup Parmesan cheese, divided
1/2 tsp Italian seasoning
20 jumbo pasta shells, cooked al dente
8 oz shrimp, peeled and chopped
8 oz cooked lobster meat
8 oz lump crab meat
8 oz cream cheese, softened
2 cups spinach, fresh or thawed and drained
1 cup mozzarella cheese, divided
1 1/2 tsp Old Bay seasoning
1 cup pasta sauce
Salt, to taste
Black pepper, to taste
Instructions
1. Preheat the oven to 350°F and lightly grease a baking dish.
2. Cook the jumbo shells just until al dente, then rinse with cold water and set aside.
3. Melt part of the butter in a skillet over medium heat, whisk in the flour, then add the cream, milk, and broth. Stir in garlic, Parmesan, Italian seasoning, salt, and pepper. Simmer until smooth and creamy.
4. In another pan, cook the shrimp and lobster in the remaining butter until just done.
5. Mix the cooked shrimp, lobster, crab, cream cheese, spinach, mozzarella, Parmesan, and Old Bay seasoning in a large bowl.
6. Spread the pasta sauce across the bottom of the baking dish.
7. Fill each shell with the seafood mixture and place the shells in the dish.
8. Spoon or drizzle the garlic cream sauce over the shells and top with the remaining mozzarella.
9. Cover with foil and bake for 20 minutes.
10. Remove the foil and bake for 5 to 10 more minutes until hot, bubbly, and lightly golden.
11. Let the casserole rest for 5 minutes before serving.
Notes
Undercook the shells slightly so they hold their shape after baking.
Drain the seafood and spinach well to avoid extra moisture.
Use freshly grated Parmesan for a smoother sauce.
Let the casserole rest before serving for cleaner portions.
- Prep Time: 25 minutes
- Cook Time: 35 minutes
- Category: Dinner
- Method: Baked
- Cuisine: American Seafood
Nutrition
- Serving Size: 1 serving
- Calories: 520
- Sugar: 4g
- Sodium: 620mg
- Fat: 28g
- Saturated Fat: 14g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 3g
- Protein: 32g
- Cholesterol: 165mg
Why You’ll Love Baked Seafood Casserole with Garlic Cream Sauce
This baked seafood casserole with garlic cream sauce delivers rich flavor with surprisingly simple steps. The combination of a creamy sauce, tender seafood, and cheesy pasta shells creates a balanced, satisfying dish.
- Rich garlic cream sauce with Parmesan depth
- Loaded with shrimp, lobster, and crab
- Perfect for gatherings or cozy dinners
- Make-ahead friendly for busy schedules
Ingredients Needed for Baked Seafood Casserole with Garlic Cream Sauce
| Ingredient | Quantity | Notes |
|---|---|---|
| Butter | 1.5 tbsp | Divided |
| All-purpose flour | 1 tbsp | For thickening |
| Heavy cream | 1/2 cup | Rich base |
| Almond milk | 1/2 cup | Any milk works |
| Broth (instead of wine) | 1/4 cup | Chicken or seafood broth |
| Garlic | 3 cloves | Minced |
| Parmesan cheese | 3/4 cup total | Fresh grated preferred |
| Italian seasoning | 1/2 tsp | Adjust to taste |
| Jumbo shells | 20 | Cooked al dente |
| Shrimp | 8 oz | Peeled and chopped |
| Lobster meat | 8 oz | Cooked |
| Crab meat | 8 oz | Lump preferred |
| Cream cheese | 8 oz | Softened |
| Spinach | 2 cups | Fresh or thawed frozen |
| Mozzarella | 1 cup | Divided |
| Old Bay seasoning | 1.5 tsp | Seafood flavor |
| Pasta sauce | 1 cup | Jarred or homemade |
How to Make Instructions
Prep and Pasta
- Preheat oven to 350 degrees.
- Cook shells according to package instructions, removing them early to prevent overcooking.
- Cool shells in cold water to stop cooking.
Cream Sauce
- Melt butter in a skillet over medium heat.
- Whisk in flour until thickened.
- Add cream, milk, and broth, stirring until smooth.
- Mix in garlic, Parmesan, seasoning, salt, and pepper.
- Simmer until creamy and set aside.
Seafood Filling
- Cook shrimp and lobster in butter until done.
- Combine seafood with cream cheese, crab, spinach, mozzarella, Parmesan, and seasoning.
- Mix thoroughly until evenly combined.
Assembly and Bake
- Spread pasta sauce in a baking dish.
- Stuff shells with seafood mixture.
- Arrange shells in a dish and top with mozzarella.
- Cover with foil and bake 20 minutes.
- Remove the foil and bake for 5–10 minutes, until golden.
- Cool slightly before serving.
Pro Tips for Perfect Results
Getting the best baked seafood casserole with garlic cream sauce comes down to a few smart techniques. First, slightly undercook your pasta shells so they stay firm after baking. This small step makes a big difference in texture. If you enjoy creamy stuffed pasta dishes, you can also check this rich variation of creamy seafood stuffed shells with shrimp and crab for more inspiration. Next, always use freshly grated Parmesan. It melts smoothly and gives your garlic cream sauce a richer flavor. Pre-shredded cheese often creates a grainy texture, so it’s best to avoid it. Also, drain your seafood and spinach very well. Excess moisture can make your casserole watery. If you want to understand flavor balance in seafood dishes, browsing these seafood pasta recipes can help you see how sauces and textures work together. Finally, taste your sauce before assembling. Adjust salt, garlic, and seasoning so every bite feels balanced and satisfying. Let the casserole rest for five minutes after baking. This helps everything set nicely and makes serving much easier.Common Mistakes to Avoid
- Overcooking shells causes breakage; remove early and cool properly.
- Skipping seasoning leads to bland results; taste repeatedly during cooking.
- Too much liquid in the seafood mixture can make the casserole soggy; drain thoroughly.
- Overbaking dries seafood; stick to the recommended timing.
Variations and Substitutions
| Ingredient | Substitution | Impact on Flavor |
|---|---|---|
| Lobster | Extra shrimp | Less sweet, still rich |
| Cream cheese | Ricotta | Lighter texture |
| Spinach | Kale | Earthier taste |
| Almond milk | Whole milk | Creamier finish |
Serving Suggestions and Pairings
This baked seafood casserole with garlic cream sauce shines even more when paired with simple, fresh sides. A crisp green salad with a light vinaigrette balances the richness perfectly. You can also serve it with roasted vegetables like asparagus or broccoli for added texture and color.
For a complete meal, warm garlic bread or soft dinner rolls work beautifully. If you enjoy garlic-forward seafood dishes, you might also love this garlic butter shrimp skillet, which pairs well as a side or appetizer.
If you want a lighter pairing, try citrus-based drinks like lemon-infused water or a refreshing spritzer. These flavors cut through the creamy sauce and keep the meal feeling fresh.
For seafood lovers who enjoy variety, adding a small side like this lemon garlic shrimp can turn your dinner into a full seafood feast.
Whether you keep it simple or build a full spread, this casserole easily becomes the centerpiece of a cozy, satisfying meal.
Frequently Asked Questions
Can I make baked seafood casserole with garlic cream sauce without wine?
Yes, replace wine with broth for the same depth of flavor without alcohol. Chicken or seafood broth works best and keeps the sauce balanced.
How do I know when the seafood casserole is done?
The casserole is done when the cheese is melted and lightly golden. The filling should be hot and bubbling around the edges.
Can I prepare this casserole ahead of time?
Yes, assemble the casserole up to one day in advance and refrigerate. Bake fresh when ready to serve for the best texture.
Why is my seafood casserole watery?
Excess moisture comes from undrained seafood or spinach. Always pat ingredients dry before mixing.
What should I serve with seafood stuffed shells?
Serve with light sides, such as salad or roasted vegetables. Bread options also complement the creamy sauce well.
You May Also Like
If you enjoyed this baked seafood casserole with garlic cream sauce, here are more delicious ideas from the same flavor family:
Creamy & Comforting Seafood Dishes Discover rich and cozy options like creamy seafood soups and chowders that bring warmth and depth to your table. Garlic-Infused Seafood Favorites Try bold and creamy flavors in this garlic cream seafood soup, perfect for garlic lovers. Easy Weeknight Seafood Meals For quicker dinners, explore easy weeknight mixed seafood pasta that keeps things simple and satisfying. Restaurant-Style Shrimp Recipes at Home Enjoy rich and elegant flavors with creamy Tuscan shrimp dinner, ideal for special occasions.Final Thoughts & Stay Connected
This baked seafood casserole with garlic cream sauce brings together comfort, flavor, and a touch of elegance in one dish. With simple steps and the right ingredients, you can create a meal that feels both cozy and special. Take your time, trust your seasoning, and enjoy every step of the process.
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