From Longman Dictionary of Contemporary Englishldoce_277_bquichequiche /kiːʃ/ noun [countable, uncountable] 
DFFa pie without a top, filled with a mixture of eggs, cheese, vegetables etc
DFFa pie without a top, filled with a mixture of eggs, cheese, vegetables etcExamples from the Corpus
quiche• Lightly oil four individual quiche tins. 2.• There also are soups, omelets, quiche and a variety of gourmet coffees.• Use to line the prepared quiche tins. 3.• It is just that quiche is fashionable, and the bacon-and-eggs breakfast is not.• Wait, though; didn't we encounter the same essential ingredients in the quiche?• Put the quiche on a baking sheet and place on the bottom rack of the oven.• Food without frontiers is the norm now with quiche, tacos or tapas and coronation chicken readily supplied by outside caterers.• The zucchini quiche below is made with Bisquick rather than a traditional crust.Origin quiche (1900-2000) French German dialect küche, from kuchen “cake” 