Cream Cheese and Spinach in Filo Pastry

The Greeks love these little triangular, puffed, savoury pastries. They are very easy to make and you can use any kind of filling you like. For example, spicy minced lamb in a thick tomato sauce with coriander and chillies; purée of salt cod; or cooked, chopped courgettes instead of spinach. The minced lamb filling would be good with a bowl of that much-loved Greek yoghurt dish, tzatziki.