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