Mirepoix (cuisine)
Similar flavour bases include the Italian "soffritto", the Spanish "sofrito", "refogado/sufrito" (braised onions, garlic and tomato) from Portuguese-speaking nations, the German "suppengrün" (leeks, carrots and celeriac), the Polish "włoszczyzna" (leeks, carrots, celery root and parsley root), the US Cajun / Creole holy trinity (onions, celery and bell peppers), and possibly the French "duxelles" (mushrooms and often onion or shallot and herbs, reduced to a paste).
Entrée
In France, the modern meaning of “entrée” on a restaurant menu is the small course that precedes the main course in a three-course meal, i.e., the course which in British usage is often called the "starter" and in American usage the “appetizer”. Thus a typical modern French three-course meal in a restaurant consists of “entrée” (first course or starter (UK); appetizer (U.S.)), followed by the ""plat"" or ""plat principal"" (the main course), and then dessert or cheese. This sequence is commonly found in "prix fixe" menus.