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A shell that’s a little too soft can split when you try to fill it, and then the crab mixture ends up in the dish instead of tucked inside the pasta. I cook the shells only until just al dente, then let them cool enough to handle before stuffing. That small bit of care keeps these crab stuffed shells with béchamel neat enough to arrange and tender after baking.

The filling is rich from whole-milk ricotta, with lemon zest and parsley to keep the crab’s sweetness from getting lost. I like lump crab here because you get recognizable, tender pieces in every shell. A smooth béchamel goes underneath and over the pasta, so the shells bake in a creamy layer rather than drying out around the edges. The top turns lightly golden as the sauce bubbles around the crab-filled shells.

The Béchamel Under the Shells Is Doing More Than Keeping Them Moist

Putting sauce on the bottom of the baking dish gives the pasta a soft landing before you add the filled shells. It also means the undersides stay coated as the dish bakes, instead of sticking to the pan or turning dry while the tops are covered. The layer doesn’t need to be thick; spreading about a cup across the base is enough to coat the dish.

The sauce on top has a different job. It surrounds the shells and carries heat through the filling, while the Parmesan gives the surface a savory finish. If you put all the béchamel over the shells, the pasta underneath would miss that protective layer. If you put all of it underneath, the exposed tops would bake without the creamy coating that makes this dish feel cohesive. Keeping some on both sides gives you tender shells, a creamy center, and a browned top without burying the crab.

Why Lump Crab, Whole-Milk Ricotta, and a Proper Roux Matter

• Lump crab meat — Its larger pieces stay distinct inside the ricotta filling, so the crab doesn’t disappear into the cheese. Pick through it carefully for shell fragments before mixing. Claw meat can stand in at the same weight; it has smaller pieces and a more pronounced crab flavor.
• Whole-milk ricotta — The higher fat content makes a creamy, tender filling that holds together with the egg. Part-skim ricotta tends to be drier and firmer, so whole milk is worth choosing here. If the ricotta looks watery, drain off visible liquid before measuring it into the bowl.
• Egg — The egg helps the filling set as the shells bake, rather than staying loose when you cut into one. Beat it into the ricotta mixture before adding the crab so it disperses evenly.
• Parmesan — Dividing the grated cheese lets some season the filling and the rest brown on top. Freshly grated Parmesan has a finer, softer texture, though packaged grated Parmesan works in this baked dish too.
• Lemon zest and parsley — The zest adds a bright aroma without making the filling wet, and parsley brings a fresh note to the rich cheese. Zest the lemon finely so it blends through the filling rather than gathering in sharp little strips.
• Whole milk, butter, and flour — Together, these make the béchamel that coats the shells. Whole milk gives it a fuller texture; whisking the flour into melted butter first builds the roux that thickens the milk into a smooth sauce.

Getting the Shells, Filling, and Béchamel Ready for the Oven

Cook the shells just to al dente

Heat the oven to 375°F and grease a 9×13-inch baking dish with the olive oil. Boil the jumbo shells according to the package directions until just al dente, usually 9–11 minutes. Drain them and let them cool until you can handle them comfortably. If they’re already soft and floppy in the pot, they’re more likely to split during stuffing and soften further in the oven.

Mix the ricotta filling without breaking up the crab

In a large bowl, mix the egg with the ricotta, 1/2 cup of Parmesan, parsley, lemon zest, 1/2 teaspoon of kosher salt, and black pepper. Once that mixture looks even, fold in the crab gently. You want the crab spread through the bowl, not mashed into the ricotta. Keep the filling nearby while you make the sauce so the shells are ready to fill.

Whisk the béchamel until it coats a spoon

Melt the butter in a medium saucepan over medium heat, whisk in the flour, and cook the mixture for 1 minute. Add the milk gradually, whisking as you go so the roux blends in without lumps. Bring the sauce to a gentle simmer and whisk often as it cooks for 5–7 minutes. It’s ready when it coats the back of a spoon; whisk in the remaining 1/2 teaspoon of salt and the nutmeg.

Fill, cover, and bake until the center is set

Spread about 1 cup of béchamel in the prepared dish. Fill 24 intact shells with the crab mixture and arrange them in the dish, then spoon the remaining sauce over the top and sprinkle on the remaining 1/2 cup of Parmesan. Cover with foil and bake for 20 minutes, then uncover and bake for 10–15 minutes more. Look for bubbling sauce and check that the center of the filling reaches 160°F, then let the shells rest for 10 minutes before serving.

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Crab Stuffed Shells with Bechamel

Crab stuffed shells are filled with ricotta, Parmesan, herbs, and lump crab, then baked under a smooth béchamel sauce. The shells turn tender while the topping bubbles and the center reaches 160°F.

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Prep Time 30 minutes mins

Cook Time 50 minutes mins

Resting 10 minutes mins

Total Time 1 hour hr 30 minutes mins

Servings: 6 servings

Course: Dinner

Cuisine: Italian

Calories: 680

Ingredients Equipment Method Notes

Ingredients

  

For the shells and filling

• 1 tsp olive oil for greasing the baking dish
• 12 oz jumbo pasta shells
• 1 egg large
• 1 container (15 oz) whole-milk ricotta
• 1 cup Parmesan grated, divided
• 2 tbsp parsley chopped fresh
• 1 tsp lemon zest finely grated
• 1 tsp kosher salt divided
• 0.25 tsp black pepper
• 1 lb lump crab meat picked over for shell fragments

For the béchamel

• 4 tbsp unsalted butter
• 0.25 cup all-purpose flour
• 4 cups whole milk
• 0.125 tsp nutmeg ground

Equipment

• 1 9x13-inch baking dish

Method

 

Cook the shells and prepare the filling

1. Heat the oven to 375°F.
2. Use the olive oil to grease a 9x13-inch baking dish.
3. Cook the pasta shells in a large pot of boiling water according to package directions until just al dente, usually 9–11 minutes.
4. Drain the shells and set aside to cool enough to handle.
5. In a large bowl, mix the egg, ricotta, 1/2 cup Parmesan, parsley, lemon zest, 1/2 teaspoon salt, and black pepper.
6. Gently fold in the crab.

Make the béchamel

1. Melt the butter in a medium saucepan over medium heat.
2. Whisk in the flour and cook for 1 minute.
3. Gradually whisk in the milk until smooth.
4. Bring the sauce to a gentle simmer, whisking often, and cook for 5–7 minutes until thick enough to coat the back of a spoon.
5. Whisk in the remaining 1/2 teaspoon salt and the nutmeg.

Assemble and bake

1. Spread about 1 cup of béchamel in the prepared dish.
2. Fill 24 intact shells with the crab mixture.
3. Arrange the filled shells in the dish.
4. Spoon the remaining béchamel over the shells.
5. Sprinkle with the remaining 1/2 cup Parmesan.
6. Cover the dish with foil and bake for 20 minutes.
7. Uncover and bake for 10–15 minutes until the sauce bubbles and the center of the filling reaches 160°F.
8. Let the shells rest for 10 minutes before serving.

Notes

Fold the crab in gently to keep the pieces intact. Refrigerate leftovers for up to 3 days; freezing is suitable. For a gluten-free version, use gluten-free jumbo shells and a gluten-free 1:1 flour blend.