Boil a kettle of water, pour 1 litre/1¾ pints of the water into a large pan and cook the spaghetti according to packet instructions (100g/3½oz takes about 9-10 minutes). Add the kale or greens ...
Combine kale and cheese in a large bowl; set aside. In a mortar or a small food processor, combine cumin, crushed red pepper flakes, anchovy fillets, and garlic. Pulverize with a pestle or process.
Mince the spring onions. Bring a pot of lightly salted water to the boil. Add the kale and boil until crisp tender, then use chopsticks to remove the vegetable and place them in a colander.