Ingredients

•          1 tbsp sunflower or coconut oil, plus extra for frying
•          2 leftover cooked potatoes, cut into roughly 2cm/¾in chunks, or 2 medium potatoes, peeled
•          1 medium onion, thinly sliced
•          2 heaped tsp medium curry powder
•          3cm/1¼in piece fresh root ginger, peeled and grated or ½ tsp ground ginger
•          1 green chilli, roughly chopped or ¼ tsp chilli flakes
•          1 large garlic clove, finely chopped
•          2 medium tomatoes, roughly chopped, or about 150g/5½oz tinned tomatoes
•          pinch sugar
•          200g/7oz mixed greens, such as baby spinach, chard, kale and lettuce, shredded
•          salt
•          freshly cooked basmati rice
•          yoghurt or raita

To serve

Method

1.     Heat the oil in a large, deep frying pan and fry the onions for 5 minutes over a medium heat, then add the cooked potato and fry for another 5 minutes until golden. If you don't have any leftover potatoes, bring a pan of water to the boil and cook your potatoes until just tender, then cut into roughly 2cm/¾in chunks and fry with the onions. Tip into a bowl and set aside.
2.     Add a little more oil to the pan, reduce the heat slightly and add the curry powder, ginger and chilli. Stir for a minute or two.
3.     Add the garlic and fry for 30 seconds, then add the tomatoes, sugar and 50ml/2fl oz water. Cook for 10–15 minutes until the sauce has thickened.
4.     Add the chopped greens and allow to wilt, then return the cooked potatoes and onions to the pan. Season with salt and cook for 5–10 minutes more.
5.     Serve with basmati rice and yoghurt or raita.