Preheat the oven to 375°.
Cook the rigatoni according to the package directions.
In a large saucepan. melt the butter. Stir in the flour, pepper and salt until smooth.
Gradually stir in the milk. Bring to a boil. Cook and stir for about 1 to 2 minutes or until thickened.
Stir in mozzarella, swiss, fontina, ¼ cup of Romano cheese, and ¼ cup of Parmesan cheese until melted.
Drain the rigatoni, and stir in the cheese sauce mixture.
Transfer to the greased 13x9 inch baking dish. Sprinkle with the remaining Parmesan and Romano cheese.
Cover and bake for about 20 minutes. Uncover, and bake for about 5 to 10 minutes longer or until bubbly.