Leftovers often end up in the garbage can. But with a little thought, it’s easy to recycle them. This ecological and economical gesture can even delight our taste buds. Like us, Luana Belmondo hates throwing things away. She knows all about waste-free cooking and has mastered the art. She shows us how to reinvent boiled or steamed potatoes as something other than mashed potatoes. On the program: potato soufflé with paprika and vegetable gratin with curry.