Bubble and squeak is a classic leftover recipe for greens, but making it rösti-style and adding some mature Cheddar adds a new dimension. These little individual rösti are brilliant served with sausages or leftover cold turkey and ham and a selection of pickles.

Serves 4 (makes 8 rösti)

You will also need a baking tray measuring 10 x 14 inches (25.5 x 35 cm).
450 g floury potatoes such as Claret or Bakers
75 g spring greens or green cabbage (trimmed weight)
50 g mature Cheddar, coarsely grated
1 level tablespoon plain flour
1 oz (25 g) butter
1 dessertspoon olive oil
salt and freshly milled black pepper

• First scrub the potatoes, then place them in a medium saucepan with a little salt. Pour boiling water over to just cover them, then simmer gently with a lid on for 8 minutes. Drain the potatoes, then, while they are cooling, remove any stalks from the spring greens or cabbage and finely shred the leaves into ¼ inch (5 mm) slices. This is easy if you form them into a roll and then slice them. Drop the spring greens or cabbage into boiling water for 2 minutes only, then drain and dry well.
• When the potatoes have cooled, peel them, then, using the coarse side of a grater, grate them into a bowl. Season with salt and freshly milled black pepper, then add the grated cheese and greens or cabbage and, using 2 forks, lightly toss together.
• To assemble the rösti, shape the mixture into rounds 3 inches (7.5 cm) wide and ½ inch (1 cm) thick. Press them firmly together to form little cakes and dust lightly with the flour. If you want to make them ahead, place them on a plate and cover with clingfilm – they will happily sit in the fridge for up to 6 hours.
• To cook the rösti, pre-heat the oven to gas mark 7, 425°F (220°C), placing the baking tray on the top shelf of the oven. Melt the butter and add the oil, then brush the rösti on both sides with the mixture. When the oven is up to heat, place the rösti on the baking tray and return it to the top shelf of the oven for 15 minutes, then turn the rösti over and cook them for a further 10 minutes. Once cooked, it's all right to keep them warm for up to 30 minutes.