Have some leftover spaghetti? How about some fresh carrots, apple or beans? Schnauzers are prone to weight gain but occassional healthy "treats" are a welcome break from their regular diet. Our Schnauzers love spaghetti and macaroni (no sauce please), fresh carrots, apples, bananas, watermelon, peanut butter and fresh green beans. In moderation, these are treats that will keep everyone healthy. Our dogs even eat only the pink part of the watermelon and leave the rind behind!