Spanish Adjective a la plancha (invariable) (idiomatic) grilled merluza a la plancha ― grilled hake Adverb a la plancha (idiomatic) grilled; on the grill Further reading “a la plancha”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10Wikiwand - on Seamless Wikipedia browsing. On steroids.