Pizza Casserole

Ingredients
 1-16 Oz. Package macaroni
1/4 Cup diced onion
2 Tablespoons margarine
2 Pounds lean ground beef
2 Cups small curd lowfat cottage cheese
1/4 Cup grated Parmesan cheese
1-14 Oz. can tomato sauce
6 Oz. fresh mushrooms, washed and sliced
1 Teaspoon oregano
1 1/2 Teaspoon salt
1 Cup light sour cream
Instruction
1. Cook macaroni, rinse and drain.
2. Sauté onion in margarine until transparent.
3. Add beef and brown
4. Drain excess fat.
5. Combine meat with remaining ingredients and mix with macaroni.
6. Pour into casserole dish.
7. Sprinkle with additional Parmesan cheese.
8. Bake at 350 degree for 45 to 60 minutes until reaches internal temperature 165 degree F.Serves 8.