Creamy Seafood Mac and Cheese Bake Step-by-step instructions

Before you start

Before you begin cooking, measure out all of your ingredients and shred the cheese to ensure a smooth, uninterrupted assembly process. Peel, devein, and pat the shrimp completely dry with paper towels so the seasonings adhere properly.

Bring a large pot of salted water to a rolling boil for the pasta, and preheat your oven to 375°F (190°C) so it is ready when the casserole is assembled.

Instructions

Preparing the Pasta and Shrimp

1. 1Cook the Pasta
   Bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions until just under al dente. Drain the pasta thoroughly and set it aside in a large mixing bowl.
   Look for The pasta should still have a slightly firm bite in the center.
   Tip Do not rinse the cooked pasta, as the natural starches help the cheese sauce cling to it.
2. 2Season the Shrimp
   In a medium bowl, toss the raw shrimp with half of the paprika to season them evenly. Ensure each shrimp is well coated with the spice before assembling the dish.
   Look for The shrimp should be lightly coated and red-orange from the paprika.
   Tip Ensure the shrimp are completely dry before seasoning so the paprika sticks well.

The pasta should be cooked just under al dente, meaning it still has a firm bite in the center, as it will continue to cook and absorb moisture while baking in the oven.

The seasoned shrimp should be tossed with the paprika, appearing evenly coated and fragrant, ready to be folded into the dish without being pre-cooked to keep them tender.

Assembling the Casserole

3. 3Combine Pasta and Sauce
   Pour the rich cheese sauce over the cooked pasta in the large mixing bowl. Fold gently with a spatula until every piece of pasta is thoroughly coated in the velvety sauce.
   Look for The pasta should be completely submerged and coated in the creamy sauce.
   Tip Use a rubber spatula to scrape every bit of cheese sauce into the bowl.
4. 4Fold in Seafood
   Add the seasoned raw shrimp to the pasta and cheese sauce mixture. Gently fold them in to distribute the seafood evenly throughout the dish, then transfer the mixture into a white rectangular casserole dish.
   Look for The shrimp should be evenly dispersed throughout the creamy pasta.
   Tip Spread the mixture into an even layer to ensure uniform baking.

The pasta and shrimp should be completely folded into the rich cheese sauce, ensuring an even distribution of seafood throughout the mixture. The entire assembly should be transferred to the white rectangular casserole dish, spread into a flat, uniform layer that is ready for the final cheese topping.

Baking and Garnishing

5. 5Top with Cheese
   Sprinkle the shredded cheese evenly over the top of the pasta mixture. Dust the cheese layer with the remaining paprika to add color and flavor before baking.
   Look for The top should be completely covered in an even layer of cheese and paprika.
   Tip Grate your own cheese from a block for the best melt and flavor.
6. 6Bake to Golden Perfection
   Bake at 375°F (190°C) for 20 to 25 minutes, until the cheese is bubbling and golden-brown, and the shrimp inside are cooked through to a safe internal temperature of 145°F (63°C). Garnish with fresh herbs before serving.
   Look for The edges should bubble vigorously and the top should be golden.
   Safe temperature 145°F (63°C) internal temperature (shellfish)
   Tip Let the dish rest for 10 minutes before slicing to allow the sauce to set.

The casserole is ready when the cheese topping is completely melted, deeply golden-brown in spots, and bubbling vigorously around the edges of the baking dish. The shrimp throughout the pasta should be opaque and pink, and the entire dish should release a warm, savory aroma of baked cheese and toasted paprika.

Common mistakes

One common mistake is overcooking the pasta during the boiling stage, which leads to mushy, structural breakdown after the final bake. Another error is using cold cheese sauce, which can make the assembly difficult and uneven.

Additionally, avoid baking the dish at too high a temperature, which can cause the dairy in the sauce to split and release excess oil, ruining the creamy texture.

How to tell it’s done

To ensure the seafood is cooked safely, the shrimp inside the bake must reach an internal temperature of 145°F (63°C) when tested with an instant-read thermometer.

Visually, the shrimp should turn completely opaque and curl into a loose 'C' shape, while the pasta surrounding them is hot and bubbly, and the top cheese crust is beautifully browned and crisp.

• Shellfish: 145°F (63°C) in the thickest part