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).
Chaudin
Chaudin (from the French word for stomach), also referred to as ponce or Southern Louisiana Ponce, is a meat dish from southern Louisiana, US, (primarily the southwestern portion of the state). It is a sausage-like variant made from ingredients sewn up in a pig's stomach. The stuffing includes spices, pork, rice (or it can be served over rice) and vegetables including onions and peppers. It can be prepared in a Dutch oven, crock pot, or baked in an oven and is often sold smoked. It is often made with a Holy Trinity Gravy, a roux with brown chopped onion, bell pepper, celery and garlic in water, broth or wine.