2 cups cottage cheese
1 (8-ounce) container sour cream
1 large egg
3/4 teaspoon salt
1/2 teaspoon pepper
2 cups (8 ounces) shredded sharp Cheddar cheese
1 (8-ounce) package macaroni, cooked
Stir together first 6 ingredients in a large bowl; stir in macaroni. Spoon mixture into a lightly greased 2-quart baking dish, and sprinkle with paprika.
Bake at 350° for 45 minutes, and let stand 10 to 15 minutes before serving.