Updated 9/27/12 with additional notes I've learned over time. This is a personal recipe based on traditional bechamel-based mac-n-cheese. Super creamy and flavorful. I like mine in the microwave, but also tastes great in the oven. For my own taste, I like 1 1/2 cups sharp cheddar, 1 cup mild cheddar, and 1/2 cup Italian blend. Re: comment about "kicked up white sauce", not using enough cheese or only mild cheeses would certainly taste more like a white sauce, but that is why I have written the recipe to taste. There are so many combinations to try :) Please feel free to use your favorite cheese(s) and plenty of it! 3 cups is just what works for me.