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).
Cotriade
Cotriade ("Kaoteriad" in Breton) is a fish stew speciality from the French province of Brittany that is made with different kinds of fish, as well as potatoes. Unlike bouillabaisse, another French stew, it usually does not contain shellfish. It is traditionally served by pouring it over toasted baguette.