Place chicken in a greased 13-in. x 9-in. baking dish; add bay leaves. Top with potatoes, onions, carrots, celery, turnips, green pepper and mushrooms. Sprinkle with salt, rosemary and pepper. Pour tomatoes over all.
Cover and bake at 375° for 1-1/2 hours or until chicken juices run clear and vegetables are tender. Discard bay leaves before serving.