I work out fasted because I have to...I lift very early in the AM and I don't really have time to eat before hand. And if I did eat, I'd probably just puke it up anyway.
So I do start eating after I lift. I drink a few scoops of powdered Gatorade down and follow that by 50g of whey in ff milk. That holds me off for a few hours until I get hungry again.
I do this because it is convienent for me. After a hard lifing session, I'm not in the mood to fix or eat a proper breakfast. So I wait until a bit later to start eating real food. I don't think there's an advantage to this over anything else really. If that Gatorade and whey was all I had all day, I'd shrink. If I skipped the Gatorade and whey and just ate a few hours later - but still ate the same amount of calories, I bet I'd still grow the same.