Preheat oven to 450 degrees F.
Butter a 13 by 9-inch baking dish and set aside. Cook the noodles in a large pot of boiling, salted water for about 5 minutes. Stir frequently as the noodles will clump together. Don't overcook them as they will continue to cook in the oven later. Drain well, but don't rinse.
Whisk together the cream, milk, salt and pepper in a large bowl. Stir in 1 cup of Fontina, 1/2 cup of Parmesan, and 1/2 cup of mozzarella. Add the noodles and toss to coat. Transfer this to the baking dish. Top noodle mixture with the remaining cheese, spread evenly.
Bake for 20 minutes, uncovered, at 450 degrees F. After this, turn the oven down to 300 degrees F and continue baking for 30 minutes or until the top has browned. Let stand for 10 minutes before serving.