Baked Macaroni with Beef and Cheese (Pasticcio)

2 cups uncooked ziti or elbow macaroni
3/4 pound ground beef
1 small onion, chopped
1 (15 ounce) can tomato sauce
1 teaspoon salt
1 1/2 cups grated Kasseri, Parmesan or Romano cheese
1/8 teaspoon ground cinnamon
1 1/4 cups milk
3 tablespoons butter or margarine
1/8 teaspoon ground nutmeg

Cook macaroni as directed on package; drain. Cook and stir beef and onion in 10-inch skillet until beef is light brown; drain. Stir in tomato sauce and salt. Spread half the macaroni in a greased 8-inch square baking dish; cover with beef mixture. Mix 1/2 cup of the cheese and cinnamon. Sprinkle over beef mixture. Cover with remaining macaroni.

Cook and stir milk and butter in 2-quart saucepan until butter is melted. Stir at least half the milk mixture gradually into beaten eggs. Blend into milk mixture in saucepan; pour over macaroni. Sprinkle with remaining 1 cup cheese. Bake uncovered at 325 degrees F until brown and center is set, about 50 minutes. Sprinkle with nutmeg. Garnish with parsley if desired.

Yields 6 servings.