01 -
Preheat oven to exactly 400°F and coat 9x13 baking dish with nonstick spray.
02 -
Combine freshly grated mozzarella, Swiss, Parmesan, and provolone with cubed cream cheese in large bowl.
03 -
Reserve 3/4 cup of cheese mixture specifically for topping.
04 -
Mix sour cream, heavy cream, and all seasonings thoroughly in separate bowl.
05 -
Cook pasta in well-salted water according to package directions until al dente.
06 -
Add hot drained pasta directly to cheese mixture while still very warm.
07 -
Pour cream mixture over hot pasta and cheese.
08 -
Stir thoroughly with wooden spoon until cheeses begin melting and combining.
09 -
Transfer entire mixture to prepared baking dish.
10 -
Sprinkle reserved cheese mixture evenly across top.
11 -
Bake 10-15 minutes until cheese topping becomes golden brown.
12 -
Watch carefully to prevent over-browning of cheese topping.
13 -
Remove from oven when perfectly golden.
14 -
Let rest briefly to set.
15 -
Serve immediately while cheese is hot and melted.