My Mommy's Baked Macaroni and Cheese

Description
This is so good! It is a recipe my mom has baked for us since I can remember. Try it, you'll like it. Enjoy.
 * Contributed by World Recipes Y-Group

Ingredients

 * 2 cups macaroni, cooked and drained
 * 2½ cups shredded cheddar cheese
 * ¾ cup shredded mozzarella cheese
 * 1½ cups small curd cottage cheese
 * ½ cup sour cream
 * 1 egg
 * salt and pepper to taste

Directions

 * 1) Combine all ingredients.
 * 2) Bake in a 2 to 3 quart baking dish that has been coated with vegetable cooking spray.
 * 3) Bake at 325°F for 35 minutes.