I'd tried a couple of these somewhat fad-induced mug cakes and found them a bit lacking. Instead of using cocoa powder and plain old chocolate chips, I went a little simpler and went and got my favorite bar of dark chocolate and used it as a substitute. Delicious and fluffy, and five minutes from cupboard to done!
Six different kinds of cheeses, a pound of bacon, gooey deliciousness... It doesn't get much better than this. I stumbled upon this combination one night in college; rummaging through the refrigerator and cupboards to find something to cook, I found out that I had an ungodly amount of cheese, so I threw it all in et voila, the greatest mac 'n cheese I've ever tasted.