Preheat the oven to Gas Mark 8 and then place the 300ml of leftover Beef Gravy in the bottom of a shallow Skillet - could use a Tray Bake Tin - and then place the leftover cold cooked Roasted Parsnips and Carrots in the Skillet as well

Add blobs of leftover cold cooked mashed potatoes over the top

About 5 minutes before the end of cooking time boil cold tap water in the Electric Mains Kettle - place 8 heaped teaspoons of Bisto Lamb Gravy Granules or Beef Gravy Granules in a large mixing bowl and then pour 600ml boiling hot water over the Gravy Granules and then stir with a Dessert Spoon and then place the 200g of cold cooked Roasted Lamb pieces in the very hot Gravy too heat through the Lamb pieces and then only add the Lamb pieces too the rest of the served Dinner