My dh is thin, too...and so are all of my children. I have to cook an entire meal every night that I can eat very little of. Be glad he's willing to go along with you! I agree, though, that he should be eating at maintenance levels. I would go ahead and get him eating some grains...just go the whole foods route instead of the white, enriched, processed garbage. Buy whole grain breads and brown rice and let him have at it.

Tricia