Navarin of lamb

1) Preheat the oven to 180°C, Gas 4
2) Chop the lamb into big chunks.
3) Pack the meat and vegetables into a casserole. Season and cover with the stock, Worcestershire sauce and mint.
4) Cover and cook for 50 minutes (test the lamb is tender).
5) Add the peas and continue to cook for a further 10 minutes.