This is a complete meal and the flavour balance between the various components is truly marvellous - sweet tender pork wrapped in smoky bacon contrasted with sweet/sour red cabbage, zingy mustard mashed potato all dribbled with smooth velvety gravy.
Finally, unwrap the meat and roast for another 10 minutes to brown the bacon. Remove it from the oven and test the internal temperature - it should be around 75°C (167°F). Loosely tent with foil while you finish off the other items.