01 -
Preheat the oven to 350°F. In a large pot of salted boiling water, cook the penne according to package directions until al dente. Drain and return to the pot.
02 -
Meanwhile, in a large ovenproof skillet over medium heat, melt 1 tablespoon of butter. Add the minced garlic, shrimp, and 2 tablespoons of parsley. Season with salt and cook the shrimp until pink and opaque, about 2 minutes per side. Transfer the shrimp to a plate, keeping the juices in the skillet.
03 -
In the same skillet, add the remaining 2 tablespoons of butter and allow it to melt. Add the flour and whisk until golden, about 1-2 minutes. Slowly add the milk and chicken broth, bringing the mixture to a simmer.
04 -
Stir in 3/4 cup mozzarella and 1/4 cup Parmesan until the sauce is creamy. Season with salt and freshly ground black pepper to taste.
05 -
Return the shrimp to the skillet, add the chopped tomatoes and cooked penne, and toss until everything is well combined. If the mixture is too thick, add a splash of milk to loosen it up.
06 -
Sprinkle the top with the remaining 1/4 cup mozzarella and 2 tablespoons Parmesan.
07 -
Bake in the preheated oven for 5-7 minutes, or until the cheese is melted and bubbly. Broil for an additional 2-3 minutes until the top is golden and crispy, keeping a close eye to prevent burning.
08 -
Garnish with the remaining tablespoon of parsley and serve warm.