Ingredients

• 1/2 stick (1/4 cup) unsalted butter
• 1/4 cup all-purpose flour
• 1 1/2 cups milk
• a 28- to 32-ounce can whole Italian tomatoes, drained, reserving 1 1/4 cups juice, and chopped fine
• 1 pound bow-tie pasta
• 1 1/2 cups coarsely grated mozzarella cheese (about 6 ounces)
• 1/2 cup crumbled Gorgonzola cheese (about 2 ounces)
• 1/2 cup diced Italian Fontina cheese (about 2 ounces)
• 1 1/3 cups freshly grated Romano cheese (about 4 ounces)
• 1/2 cup finely chopped fresh parsley leaves (preferably flat-leafed)

Instructions

1. Preheat oven to 375°F. and butter a 3-to 4-quart gratin dish or other shallow baking dish.
2. In a heavy saucepan melt butter over moderately low heat. Add flour and cook roux, whisking, 3 minutes. Add milk and reserved tomato juice in a stream, whisking, and bring to a boil, whisking. Stir in tomatoes and salt and pepper to taste and simmer until thickened, about 3 minutes.
3. In a kettle of salted boiling water cook pasta until just al dente, about 8 minutes, and drain well.
4. In a bowl stir together pasta, sauce, mozzarella, Gorgonzola, Fontina, 1 cup Romano, and parsley and transfer to prepared dish. Sprinkle pasta with remaining 1/3 cup Romano.
5. Bake bow ties in middle of oven 30 to 35 minutes, or until golden and bubbling, and let stand 10 minutes before servings.