I am kind of facinataed by those who hate leftovers (food) -- it is the same food, and all ready for a new meal with the additon of some one thing to freshen it up.
I about never make casseroles and I am disappointed when we eat the whole meal -- I love to use the leftover meat and veg in a new meal - it is the right brain part of me, I guess, create something tasty -- or pretty -- out of what you have on hand.