Us too, but one scrap we never feed them is any creature of the bird family, leftover turkey, chicken, duck, etc.My chickens get almost all kitchen scraps! Everything in moderation, so they don't get too fat, but it's a nice supplement to their feeds.
In cooler weather, we give them warm oatmeal. They get sweet feed treats in the summer. Meat is good protein. Greens, bugs, fruits (except citrus, they don't go for that), veggies, bread- chickens aren't picky snackers!