Cut the lamb in portions. Simmer the onion in a frying pan with a little
water. Add a teaspoon of butter and brown lightly. Add the lamb and salt &
pepper and brown for a few more minutes. Turn the element off, add the
cheese and separate in portions. Butter each sheet of pastry and use them to
wrap each portion. Place in a buttered pan, top with the rest of the butter
and bake in medium-low oven for 2 1/2 hr.
It can be either with beef