chickpea polenta, or bean stew
Two meanings. In Piedmont, notably in Novara, it's a filling dish of white or borlotti beans and rice, with onions and sausage, or salame (especially the local salame della duja) in a broth or other pork parts. Sometimes it includes frogs as well. It's celebrated every June in a Sagra della Panissa in Morano sul Po (Piedmont).
In Liguria, it's a substitute for polenta. Made from chickpea flour, similar to farinata, panissa is slow-cooked and stirred into a thick paste and left to set, then sometimes sliced and fried in olive oil.
Also spelled paniscia.