Lightly flour a work surface and roll out the pastry to about 2.5mm thick. Using a 10cm pastry cutter or small saucer, cut out 10 circles. You might have to roll it out and cut it again, in which case be sure to fold it over itself rather than scrunch it up as you will damage the layers.
Spoon the filling into the centre of each disc, leaving a little empty space around the edges. Brush either side of the filling with a little egg. Bring the sides of the pastry up into the middle and crimp slightly to make little purses.