Set your oven to Gas mark 4-5, 180-190°C, 350-375°F
Place the meat muscle side up on a board, season liberally with the sea salt and pepper. Drizzle with olive oil and sprinkle with the oregano.
Mix all the ingredients for the stuffing together and spread over the meat.
Roll up and secure with new butcher’s string. Weigh the joint and place on a metal rack in a large non-stick roasting tin, and drizzle with the olive oil. Cover and roast in a preheated oven for the preferred, calculated cooking time. Remove from the oven, cover and set aside to rest for 15-20 minutes.
Stuffing: