Pasta with Three American Cheeses

I created this dish while attending the University of Wisconsin. Italian cheeses were not available so I used local products. Incidentally, the caraway seeds in the Wisconsin Cheddar are very nice in the sauce. I must admit that in adapting this recipe for publication I have bent to a preference for Cheddar from New York, my home state. I really do think it is better, though sharp Wisconsin cheddar is very good. Now when I make this dish I use only Italian grana, since it is, without questi