Cover and simmer the Lamb with chicken stock until tender, usually about 2 hours. 
With a 5cm round cutter, cut out 2 large cylinders of potato. Cut cylinders into 6 slices of about 3mm wide and steam until soft, usually about 5 mins.
When Lamb neck is soft and flaking, drain and keep stock for the sauce. Crush the neck with a fork and add seasoning to taste. 
In the cutter place a slice of potato at the bottom followed by flaked lamb neck and layer using 3 slices per portion until filled to the top, press down to firm up. 
Set aside and keep warm.
 In a hot frying pan add a tablespoon of oil. When smoking hot, add the two lamb rumps skin side down and season with salt and pepper. When golden brown turn over and cook for another 2 minutes. Place in a hot oven and cook at 180 for 8 minutes. Once ready, rest in warm place for 10 minutes.
Before serving, cut each rump into 2 pieces. Heat a frying pan until hot. Add one tablespoon of oil. Add the cutlets and pan fry for 3 minutes each side. Rest in a warm place.  
Reheat the cooking liquor. Add the diced vegetable, potato, and parsley and bring to the boil. Taste and season the broth.
To Serve: Divide broth between 4 large bowls, at 12 o clock place the lamb neck removing round cutter carefully so it retains it s shape place, the cutlet at 4 o clock, and the piece of rump at 8 o’clock pour on the broth and serve.