Roll out the pastry to a large rectangle. Mix the soup, asparagus,
chicken and rice together with the herbs and a
good
grinding
of pepper.
Spoon down the centre of the pastry. Make
slashes either sides at 1 cm/1/2 in intervals down
the length.
Brush with egg. Fold over the ends, then
wrap the strips over the filling one at a time from
each side alternately to form a plaited effect.
Carefully transfer to a dampened baking sheet. Brush
with egg and bake at 200°C/400°F/gas mark 6 for
about 25-30 minutes until golden brown and piping
hot. Serve hot or cold.