I remember having quiche while on holiday in France in around 1978, and it not being something you could get at home. Then a few years later they started appearing in the shops over here. (My grandma always considered them very new-fangled, and called them "kwitch".) Round about the same time, I also remember my Mum talking about this wonderful thing she'd eaten while on holiday in Italy before she got married, called "pizza", which you couldn't get over here...