Pigs in blankets with mustard bubble and squeak

Method

1. Preheat the oven to 200°C/fan180°C/gas 6. Put the sausages in a baking tray and cook for 20 minutes, turning once, until the bacon is crisp and the sausages are piping hot.
2. Meanwhile, bring a pan of water to the boil. Add the cavolo nero, then reduce the heat and simmer for 2-3 minutes until the cabbage is bright green.
3. Drain and refresh under cold water, then squeeze out all the excess moisture (there will be quite a lot).
4. Finely chop the cooked cabbage, then transfer to a bowl and mix with the mashed potato and grated nutmeg.
5. Heat the oil in a large frying pan, then fry the mixture for 5-6 minutes or until golden on the base.
6. Meanwhile, warm the onion gravy in a pan over a medium heat. Serve the bubble and squeak with the sausages and gravy.