Sure have.. the product I use to lighten up those Peanut calories is PB2. the powdered peanut butter product. There have been a few other posts about the stuff here, but you can check it out at www.bellplantation.com
They have recipes there too.. and I know several are for noodle dishes.
I just ordered another batch of this stuff on Monday and I am trying the chocolate PB2 for the first time. I cannot wait!