Kitchen scraps are the ideal food for chickens, some scraps anyway. Always make sure that they don't get raw potato peel though as that can make them ill. Our hens, Posh and Pecks, love leftover mash, peas, bits of bacon etc. Chickens are omnivores so don't limit to veg!

http://news.bbc.co.uk/1/hi/world/europe/8539877.stm