2 bags kale, no stems (about 320-400g/11Β½-14oz)
1 onion, roughly chopped
2 sweet potatoes, peeled and chopped
freshly ground black pepper
Β½ tsp freshly ground nutmeg
2 tbsp olive oil
900ml/1Β½ pint good-quality vegetable stock
150ml/5fl oz milk
40²µ/1Β½΄Η³ϊ Parmesan, grated
200g/7oz bacon lardons