Wouldn't the oil from the peanuts kill the flavor anyway?
I say just have some phad thai with your weizenbier and call it a day!
...not that I haven't been interested in rather oddball beers myself.
Hey, you could make a pad thai beer by mashing with rice noodles and roasted peanuts, steeping with birdseye chilies and basil and dosing with fish sauce!
(blearggghhh!!!)