I believe that Richard Dawkins is indeed aware of the FLying Spaghetti Monster
He namechecks His Noodliness here
In The God Delusion he also says "I am delighted to see that The Gospel of the Flying Spaghetti Monster has now been published as a book, to great acclaim. I haven't read it myself, but who needs to read a gospel when you just *know* it's true?" and "I have found it an amusing strategy, when asked whether I am an atheist, to point out that the questioner is also an atheist when considering Zeus, Apollo, Amon Ra, Mithras, Baal, Thor, Wotan, the Golden Calf and the Flying Spaghetti Monster. I just go one god further."