Beef Pastitsio

1 pound ground beef
1 cup chopped onion
1 can (15 ounces) tomato sauce
1/2 teaspoon salt
1/2 teaspoon dried oregano
1/4 teaspoon pepper
1 garlic clove, minced
2 cups elbow macaroni
1 cup (4 ounces) shredded cheddar cheese
1 egg, beaten

Cheese Sauce
3 tablespoons butter or margarine, melted
3 tablespoons all-purpose flour
1-1/2 cups milk
1 cup (4 ounces) shredded cheddar cheese
1/2 teaspoon salt

In a skillet, cook beef and onion until meat is browned and onion is tender. Drain. Stir in tomato sauce, salt, oregano, pepper and garlic. Cover and simmer for 15 minutes. Meanwhile, cook macaroni according to package directions; drain and rinse.

Combine macaroni, cheese and egg; set aside. For cheese sauce, melt butter in a heavy saucepan. Stir in flour; cook until smooth and bubbly. Stir in milk; cook and stir for 5 minutes or until smooth and thickened. Remove from the heat and stir in salt and cheese.

Spoon half of the macaroni mixture into the bottom of a greased 13-in. x 9-in. x 2-in. baking dish. Cover with meat mixture; top with remaining macaroni. Spread over the top. Bake at 350°, uncovered, for 30 minutes or until heated through. Let stand 5 to 10 minutes before serving. Makes 6-8 servings.