Step 1

Preheat the oven to 375 degrees. Coat a 3 quart baking dish with cooking spray.

Step 2

Melt the butter in a large pan over medium heat. Add the garlic and cook for 30 seconds. Whisk in the flour and cook for 1 minute.

Step 3

Pour in the milk and cream, then simmer, whisking constantly, until sauce has just thickened.

Step 4

Add the parmesan cheese and 1/2 cup shredded mozzarella to the milk mixture, along with salt and pepper to taste.

Step 5

Stir until cheese has melted.

Step 6

Place the pasta and chicken in a large bowl. Pour the sauce over the top, and toss to coat evenly.

Step 7

Pour the pasta mixture into the prepared pan, and top with remaining mozzarella cheese.

Step 8

Bake, uncovered, for 20 minutes or until pasta is bubbly and cheese has just started to brown.

Step 9

Sprinkle parsley over the top, then serve.