Personally, I am not a vegetarian or a vegan, so I will not pretend to
be any sort of expert on the subject. However, here is a link you might
want to check out.
http://www.rocksolidfitness.net
I am not a spammer, just thought you might find some info at this sight.
I am also a drummer and so is this guy and that is how I found his
webpage. Not sure how he packs on muscle with no animal products.
Personally, chicken, fish and the occasional steak works for me!