Polenta pasticciata begins after the porridge has cooled and set. Firm slabs are cut, stacked with sauce and cheese, and sent into the oven so the layers heat through and the cheese softens into the cornmeal. It is cold polenta assembled as a composed bake rather than a bowl of mash.
What sits between those slices is where the dish changes character. Some versions fold in a meat ragù; others use béchamel, more cheese, mushrooms, or ham. The method stays the same—cold polenta, layered, oven-finished—while the filling decides whether the plate leans savoury, creamy, or woodsy.
If you meet polenta pasticciata on a menu or in a kitchen, look first at that middle layer. Ragù, béchamel, cheese, mushrooms, and ham are the fillings on record; knowing which one you are eating is the clearest way to understand the plate and to compare it with other baked polenta dishes.