1 (8 oz.) pkg. macaroni, cooked
2 c. cottage cheese, cream style
1 c. sour cream
1 egg, slightly beaten
1 tsp. salt
1 1/8 tsp. pepper
2 tsp. onion, grated (optional)
1 (8 oz.) pkg. sharp Cheddar cheese, shredded

Combine all ingredients in large bowl. Put into lightly greased shallow 2 quart baking dish. Bake at 350 degrees for 45 minutes.