Grown Ups Gourmet Mac & Cheese

I made up a new recipe tonight. We liked it. All the ingredients just happened to be around. They included:

-1/2 box whole wheat rotini pasta
-2 Tb butter
-1/2 stick cream cheese
-1 can evaporated milk
-salt
-pepper
-cornmeal (for thickener)
-grated Parmesan cheese