Crockpot Mac and Cheese

One box of macaroni, cooked and drained (I used small shells)
1 can of evaporated milk
1.5 cups of milk
A few shakes of the salt shaker
1/4 cup melted butter
12 oz sharp cheddar cheese, shredded (I guesstimated this and I think I used more than called for but it came out good)
1 egg beaten
1 tsp of dry mustard
Paprika

Grease the crockpot (I used Pam spray). Throw everything except paprika and some cheese into the crockpot and stir. Top the mixture with additional shredded cheese and sprinkle with paprika. Cook on low for 3-4 hours or on high for 2 hours.