Mett is quite popular where I live (Berlin). It’s basically just ground pork seasoned with a little salt. Absolutely nothing special tastewise, but when you grow up with it, it becomes sort of a comfort food. We put it on freshly baked sliced in half “Brötchen”, add pepper and onions and sometimes pickles as well, depending on personal preference. Me and my pals sometimes jokingly call it “Nothack”, literally “emergency minced meat”, implying you always need some of it within easy reach.