75²µ/2½´Ç³ú curly kale (or mature spinach leaves), rinsed, shredded, any tough stalks discarded
3 large garlic cloves, roughly chopped
2 onions, roughly chopped
1 x 400g tin chopped tomatoes
3 tbsp medium curry paste
150g/5½oz dried split red lentils, rinsed and drained
freshly ground black pepper
1 tsp salt, plus extra to season
2 tbsp sunflower oil
500g/1lb 2oz lamb neck fillets, trimmed, cut into 3cm/1¼in chunks
steamed rice or naan bread, to serve