Ensure that you leave 1cm/0.5in around the edges. Spread the mustard on one side of the pocket and place a slice of ham and cheese inside. Put the pockets into a shallow dish. Pour over the egg ...
Sandwich the slices of bread together with the ham and cheese. Dip them into the egg mixture and pop them on a plate. Put a non-stick frying pan on the hob with a thin layer of oil on the base.