A delicious sausage casserole with "hidden" fruit and vegetables; apples and parsnips add a sweetness to this hearty family dish and if you can substitute the cider with apple juice if you wish. Try to use top quality butcher's sausages with a minimum of 70% meat content - pork sausages are a perfect match, but you can notch this recipe up by using venison sausages and serving the casserole with spiced red cabbage.