Slow Cooker Mac-n-Cheese

16 oz. elbow macaroni
1/2 c butter or margarine, melted
2 eggs, beaten
1 can evaporated milk
1 can condensed cheddar cheese soup
1 c milk
4 c shredded cheddar cheese, divided
1/8 tsp. paprika

Cook macaroni according to package directions, drain. Place in 5 qt. slow cooker; add melted butter. In a bowl, combine eggs, evaporated milk, soup, milk, and 3 c cheese. Pour over macaroni; stir to combine. Cover and cook on low for 4 hours. Sprinkle with remaining cheese. Cover and cook 15 minutes longer or until cheese is melted. Sprinkle with paprika.