Elevate classic pasta night with our incredible Seafood Stuffed Shells recipe. This dish transforms ordinary comfort food into a gourmet experience, brimming with crab, shrimp, and scallops.
Prepare for a rich, creamy béchamel sauce and a perfectly golden, crispy topping that makes every bite heavenly. This recipe is surprisingly easy to make, delivering an impressive result that will delight everyone.
Table of Contents
Why You’ll Love These Seafood Stuffed Shells

Discover why these Seafood Stuffed Shells will become your new favorite.
- Rich, Flavorful Seafood Filling: Enjoy a generous blend of lump crabmeat, tender shrimp, and sweet scallops in every bite.
- Luxurious, Creamy Béchamel Sauce: A silky, homemade white sauce blankets the shells, adding an irresistible richness.
- Crispy, Golden Breadcrumb Topping: Panko breadcrumbs provide a delightful crunch and beautiful golden finish.
- Impressive for Entertaining: This dish looks elaborate but is straightforward, perfect for special gatherings.
- Comfort Food with Gourmet Appeal: It offers the warmth of classic baked pasta with an elegant, seafood twist.
- Simple Steps, Rewarding Outcome: Our beginner-friendly guide ensures success, even for new cooks.
Ingredients
Gather your fresh ingredients to create the best Seafood Stuffed Shells.
For the Pasta & Seafood:
- Kosher salt
- 6 ounces dry jumbo pasta shells (about 25 shells; 170 g)
- Extra-virgin olive oil, for drizzling and greasing
- 8 ounces (225 g) peeled and deveined shrimp
- 1 pound (450 g) lump crabmeat, picked over for shells
- 8 ounces (225 g) dry-packed sea scallops, cut into small pieces
To ensure food safety, it’s important to follow proper guidelines when handling raw seafood. The FDA provides comprehensive information on safe food handling practices for seafood.
For the Filling & Flavor:
- 2 tablespoons (30 ml) Dijon mustard
- 1/2 cup (120 ml) mayonnaise
- Dash of Old Bay seasoning
- 1 medium shallot (about 2 ounces; 60 g), minced
- Small handful minced flat-leaf parsley, plus more for garnish
- Freshly ground black pepper
For the Béchamel Sauce:
- 1 1/2 tablespoons (20g) unsalted butter
- 1 1/2 tablespoons (12 g) all-purpose flour
- 1 1/2 cups (360 ml) milk
- 1 bay leaf
For the Topping:
- 2 tablespoons (30g) unsalted butter, melted
- 1 cup panko breadcrumbs (about 3 1/2 ounces; 100 g)
Notes & Substitutions
- You can easily adapt this recipe to your preferences. Cook a few extra jumbo shells in case some tear during handling.
- For the seafood, feel free to swap in cooked lobster meat or use high-quality imitation crab if preferred. Enhance the filling with sautéed spinach or diced mushrooms for added vegetables.
- Experiment with different cheeses like grated Parmesan or cream cheese for extra richness in the filling. A pinch of lemon zest or cayenne pepper can further boost the flavors.
Equipment
You will need a few basic kitchen tools to make these delightful Seafood Stuffed Shells. A large pot is essential for boiling the pasta. You’ll also need mixing bowls for combining ingredients and a small saucepan for the béchamel.
A 9×13 inch baking dish perfectly accommodates the stuffed shells. Keep a whisk and wooden spoon handy, plus a spider or slotted spoon for managing the pasta and shrimp.
How to Make Seafood Stuffed Shells

Follow these simple steps to prepare your perfect Seafood Stuffed Shells. Each stage is designed to be beginner-friendly.
Step 1: Prep Pasta Shells to Al Dente
Preheat your oven to 325°F (160°C) and place the rack in the middle. In a large pot of generously salted boiling water, cook the jumbo pasta shells.
Follow package instructions for “baked shells,” or cook them for 3 minutes less than the recommended time if no specific instruction is provided. This keeps them firm enough for baking.
Carefully transfer the shells to a large bowl of cold water using a spider or slotted spoon. This stops the cooking process. Drain them well, reserving the pasta water for later. Drizzle the cooled shells very lightly with olive oil and toss gently to prevent sticking. Set them aside.
Step 2: Poach and Chop Shrimp
Fill a large bowl with ice water. Bring the reserved pasta water back to a boil. Poach the peeled and deveined shrimp in the boiling water until they are just barely cooked through, about 1 to 2 minutes.
Avoid overcooking the shrimp. Drain them immediately and transfer to the ice bath to chill quickly. Once chilled, drain the shrimp again and chop them into small, bite-sized pieces.
Step 3: Combine All Seafood Filling Ingredients
In a spacious mixing bowl, combine the picked-over lump crabmeat, chopped shrimp, and cut sea scallops. Add the Dijon mustard, mayonnaise, a dash of Old Bay seasoning, minced shallot, and a small handful of fresh minced flat-leaf parsley.
Mix all the ingredients thoroughly until well combined. Season the filling generously with kosher salt and freshly ground black pepper to taste.
Step 4: Prepare the Smooth Béchamel Sauce
In a small saucepan, melt 1 1/2 tablespoons (20g) of unsalted butter over medium-high heat. Do not let the butter brown.
Add the all-purpose flour and whisk continuously for about 1 minute to form a smooth paste, or roux. Cook until the raw flour scent disappears. While whisking constantly, gradually add the milk in a thin, steady stream.
Alternatively, add the milk in small increments, whisking thoroughly after each addition to maintain a homogeneous, lump-free texture. The sauce will initially be very thick, then thin out as more milk is added.
Add the bay leaf. Continue heating and stirring until the sauce begins to simmer and thickens slightly. Reduce the heat to low and cook, stirring occasionally, for about 3 minutes, until the sauce is thick enough to lightly coat the back of a wooden spoon. Season the béchamel sauce with salt and pepper, then discard the bay leaf.
Step 5: Spread Sauce, Fill, and Arrange Shells
Lightly grease a 9- by 13-inch baking dish with olive oil. Spread 1/2 cup (120ml) of the prepared béchamel sauce evenly across the bottom of the dish.
Take a cooked jumbo pasta shell and, using a spoon, fill it with a generous scoop of the seafood mixture. Place the filled shell in the baking dish with its opening side facing up.
Repeat this process until the baking dish is full, typically fitting about 18 stuffed shells. You may have a few extra pasta shells leftover.
Step 6: Mix and Sprinkle Breadcrumb Topping
Spoon the remaining 1 cup (240ml) of béchamel sauce evenly over the arranged Seafood Stuffed Shells.
In a small bowl, melt the remaining 2 tablespoons (30g) of unsalted butter. Add the panko breadcrumbs and a pinch of salt, then toss them together until the breadcrumbs are well coated. Sprinkle this buttery breadcrumb mixture generously all over the top of the shells in the baking dish.
Step 7: Bake Until Heated Through
Place the baking dish in your preheated oven. Bake the Seafood Stuffed Shells for approximately 25 minutes, or until the entire dish is heated through and bubbling gently around the edges.
Step 8: Broil for a Golden, Crispy Finish
Once baked, switch your oven to the broiler setting. Broil the shells, watching them very closely to prevent burning. Broiling will help the breadcrumbs turn a beautiful golden brown and become wonderfully crispy. Rotate the baking dish occasionally for even browning across the top.
Step 9: Garnish with Fresh Parsley and Serve
Once the topping is golden and crisp, remove the dish from the oven. Scatter a generous amount of fresh minced flat-leaf parsley over the top for garnish. Serve your delicious Seafood Stuffed Shells immediately while warm.
Pro Tips for Perfect Seafood Stuffed Shells & Troubleshooting

- Mastering Seafood Stuffed Shells is easy with these expert tips. Cook pasta shells to just under al dente to prevent tearing when filling.
- For a lump-free béchamel, whisk flour and butter thoroughly before slowly adding warm milk, whisking constantly.
- Poach seafood briefly to keep it tender and juicy, avoiding rubbery textures. Watch the broiler closely, rotating the dish for even browning to prevent burnt spots. To make ahead, assemble and cover, then refrigerate for up to a day before baking.
- If your sauce is watery, gently simmer longer to thicken. For a dry filling, add a splash more mayo or milk. Always taste and adjust seasoning before baking for the best flavor.
Serving Suggestions, Storage, and Variations
- Enhance your Seafood Stuffed Shells experience with ideal pairings. Serve them alongside a crisp green salad with a light vinaigrette or a loaf of warm, crusty bread to soak up all that delicious sauce.
- Store any leftover Seafood Stuffed Shells in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave for the best texture.
- For variations, consider adding sautéed spinach or diced bell peppers to the seafood mixture for extra color and nutrients. Experiment with different cheeses like sharp Parmesan, nutty Gruyere, or creamy Fontina mixed into the filling or béchamel.
- Add a pinch of red pepper flakes to the béchamel or filling for a spicy kick. You can also turn this into a seafood pasta bake by layering pasta, sauce, and filling in a casserole dish instead of stuffing individual shells.
Nutrition Information
This estimated nutrition information for Seafood Stuffed Shells can vary based on specific ingredients and portion sizes. It provides a general guideline for macronutrients.
| Nutritional Component | Amount (per serving) |
|---|---|
| Calories | 593 kcal |
| Carbohydrates | 42 g |
| Cholesterol | 190 mg |
| Fiber | 2 g |
| Protein | 36 g |
| Saturated Fat | 8 g |
| Sodium | 1482 mg |
| Sugar | 6 g |
| Fat | 31 g |
Serving Size: Serves 4 to 6. This information is an estimate and not a substitute for professional nutritional advice.
The Harvard T.H. Chan School of Public Health provides insights into the health benefits of various seafood types.
Frequently Asked Questions
Can I freeze seafood stuffed shells?
Yes, you can freeze unbaked Seafood Stuffed Shells. Assemble them, then cover tightly with foil and freeze for up to 2 months. Bake from frozen, adding extra time.
What type of crab meat is best?
Lump crabmeat offers the best texture and flavor for this recipe. You can also use jumbo lump for a more luxurious feel.
Can I use frozen shrimp or scallops?
Absolutely, just thaw them completely before cooking. Pat them dry to remove excess moisture for best results.
Conclusion
This Seafood Stuffed Shells recipe is a true crowd-pleaser, perfect for transforming a weeknight dinner into something special or impressing guests. Its rich seafood filling, velvety béchamel, and crunchy topping combine for an unforgettable meal.
Give this elevated classic a try; you’ll find it simple yet incredibly rewarding. Share your culinary creations and enjoy the delightful flavors of this homemade gourmet dish!

Seafood Stuffed Shells
Ingredients
Equipment
Method
- Preheat oven to 325°F (160°C). Cook pasta shells in salted boiling water until al dente. Transfer to ice water, then drain and drizzle lightly with olive oil.
- Poach shrimp in boiling water for 1–2 minutes until just cooked. Chill in ice bath, then chop into bite-sized pieces.
- Combine crabmeat, chopped shrimp, scallops, Dijon, mayo, Old Bay, minced shallot, parsley, salt, and pepper in a bowl. Mix well.
- In a saucepan, melt 1.5 tbsp butter. Whisk in flour for 1 minute. Gradually add milk while whisking. Add bay leaf, simmer until thickened. Remove bay leaf and season.
- Grease a 9×13 inch baking dish. Spread 1/2 cup béchamel on bottom. Fill each pasta shell with seafood mix and place in dish.
- Top shells with remaining béchamel. Mix melted butter and panko with salt, then sprinkle over shells.
- Bake at 325°F (160°C) for 25 minutes until heated through and bubbling at edges.
- Broil briefly to brown topping, watching closely and rotating dish for even color.
- Garnish with fresh parsley and serve hot.
Nutrition
Notes
- For seafood swaps, cooked lobster or imitation crab can be used.
- Add sautéed spinach or mushrooms for variation.




