Using ready rolled filo pastry is the quickest way to make apple strudel. In Austria, the traditional strudel filling is apples, nuts and raisins but you can change it to your liking. I've eaten all types of strudels - with cherries, pears and pistachios, almonds, and even chocolate. Thank you to my friend Sylvia's mum for her recipe.
For variation, sprinkle each layer of filo pastry with a bit of sugar cinnamon mixture.