I have just read that the King has chosen an official recipe for the coronation "ideal to be served as the centrepiece of a Big Lunch".
It is a spinach and bean quiche, but it is made using lard in the pastry.
It is already being described throughout the media as "a vegetarian quiche".
Obviously, a lot of people will not have lard and will in fact actually make a vegetarian coronation quiche using their normal pastry recipe or bought pastry (e.g.: accidentally vegetarian).
But I forsee a lot of confusion with vegetarians having to ask for exact ingredients and/or accidentally eating lard over the forthcoming bank holiday weekend (during which we are being nationally encouraged to make this recipe and share it with potential strangers).