If DH makes dinner he'll always leave some in the pot, rather than dishing everything out. When I commented on it he said that everyone had enough to eat so there isn't a problem. My problem is that the leftovers are either thrown out, which is wasteful, or put in the fridge, not used, festers and then gets thrown out.
I know that I grew up with big dinners and his family had more modest portions.
Also, DS is constantly eating so I think that if DH gave him a bigger dinner then DS wouldn't be raiding the fruit basket half an hour after dinner. Surely it's better to dish everything up and then if people can't finish it they can throw it out? Or AIBU?