a pielike dish consisting of an unsweetened pastry shell filled with a custard and usually containing cheese and other ingredients, as vegetables, seafood, or ham: spinach quiche.
1949, from Fr. quiche (1810), from Ger. (Alsace-Lorraine dialect) Küche, dim. of Ger. Kuchen "cake." Became fashionable 1970s; became contemptible 1980s.