01 -
Set your oven to 425°F (220°C). Coat a 9x13-inch deep dish with some cooking spray to stop sticking.
02 -
Snap the linguine into smaller lengths and spread them out in the dish. Mix the chicken broth (or broth-wine combo) with the onion, garlic, and ¼ cup of Parmesan in a bowl. Pour the mixture over the pasta and give it a gentle stir.
03 -
Cover the dish tightly with foil and bake it for 40 minutes. Stop halfway through to stir everything well with tongs to spread the flavors. Make sure the pasta is almost but not fully cooked before moving on.
04 -
When the pasta is just about cooked, mix in the raw shrimp. Sprinkle the mozzarella and the rest of the Parmesan over the pasta.
05 -
Put the dish back in the oven, leaving it uncovered, for another 5 to 10 minutes. Let the cheese melt beautifully and the shrimp turn a pretty pink, but don't let them overcook.
06 -
If you like, mix in some butter and season with salt and pepper to suit your taste. Scatter fresh parsley and more Parmesan on top just before serving.