Turn your crock pot on high, drop in the butter. Once its soft and melty (not completly melted) pour your uncooked pasta in and stir to coat. That dry pasta soaks it up(: Dump in the evaporated milk, diced tomatoes, and water. Salt and pepper. Stir. Add all your cheese. Stir. Turn your crock pot to low, and let the cheeses melt for about an hour. Stir to blend into a cheesey sauce. Top with paprika, cover and cook for 2 more hours. Enjoy!