My Dad's American Cheese Mac and Cheese!

1 lb of Land O' Lakes white American cheese (get the one ONLY from the deli counter, not pre-packaged)
1 lb of Rigatoni pasta
1/2 stick of butter
2 cups of Whole Milk
1/2 cup Parmesan Cheese
Salt and Pepper to Taste

Cook pasta according to directions. In the same pot that you cooked the pasta in, melt your butter and add the milk. Let the milk get just about to a boil, remove from heat and add your cheeses and then the pasta back into the pot. Let everything melt and add to a buttered 9x12 baking dish. Bake for about 25-35 minutes or until bubbly. You can also add breadcrumbs on top...as well.