Start off by laying out the pastry cases on your serving dish, and fill each with caramel - either spoon or pipe it in (I used a resealable bag with the corner chopped off).
Top each one with a slice of banana...
Then top each one with cream. I used a piping tip and again, a resealable bag to pipe this on - but you could spoon it on, or just pipe without a tip.
Grate chocolate over the top - if you don't have a grater you can get the same effect chopping the edge of a block of chocolate. You won't need much chocolate but it does make them look super tasty!
That's all there is too it - it's not the cheapest option (the pastry cases can be pricey) but very effective and doesn't take long to prepare - I think it took me about 20 minutes. It definitely took less time that that for the plate to empty once the masses were let at the food table - I'll take that as the seal of approval!