Two-Cheese Macaroni

1 (7 oz) package elbow macaroni
8 oz sharp Cheddar cheese
1 large egg
1 cup small curd cottage cheese
1 cup sour cream
1/2 tsp salt
1/8 tsp black pepper
2 Tbsp chopped fresh parsley

Preheat the oven to 350. Lightly spray a 2-quart baking dish with nonstick cooking spray.
Place 2 quarts water in a large saucepan. Bring to a boil. Add macaroni. Boil until tender, about 10 minutes; drain well.
Shred Cheddar. Whisk egg in a large bowl. Add cottage cheese, sour cream, salt and pepper; mix well. Stir in Cheddar.
Fold macaroni into cheese mixture gently; mix well. Spoon macaroni mixture into prepared baking dish.
Bake until mixture is bubbly and lightly browned, about 30 minutes. Sprinkle with chopped fresh parsley if desired.