Macaroni Taco bake

1 lb. ground beef

15-oz. can tomato sauce

1-1/4 oz. pkg. taco seasoning mix

3 c. elbow macaroni, cooked

8-oz. container sour cream

1 c. shredded Cheddar cheese, divided

1/4 c. grated Parmesan cheese

Garnish: green onions, chopped

Brown beef in a skillet over medium heat; drain. Stir in tomato sauce and seasoning mix. Bring to a boil and remove from heat. Combine cooked macaroni, sour cream and 1/2 cup Cheddar cheese in a bowl. Spoon macaroni mixture into a lightly greased 13”x9” baking pan. Top with beef mixture and remaining cheese. Bake, uncovered, at 350 degrees for 30 minutes, or until hot and bubbly. Garnish with green onions. Serves 6.