Spray your crock-pot with nonstick spray.
Pour in your dry pasta.
Add the 3 cups of cheese next.
Sprinkle salt and pepper on top.
Give it a little stir and set the crock-pot to the LOW setting.
Cook 2 hours; remove lid and place the 1/2 c cheese on top.
Replace the lid for 10 minutes to let the cheese melt.
Remove lid, serve & enjoy!