Put the shortbread, except for 5 pieces, in the freezer bag. Close the bag tightly, crumble the cookies with a cake roll. Put crumbs in ten glasses. Stir cream cheese and yoghurt until smooth. Gradually stir the cream cheese mixture into the nut nougat cream.
Pour cream into a piping bag without spout and squirt into the glasses. Chill for about 2 hours.
Break the chocolate into small pieces. Crumble meringue. Spread both on the chocolate cream. Halve the remaining shortbread and decorate the cream with it.