Having grown up in Penna. Dutch country here in PA - bread filling always won out at our house. My Dad loved it, I loathed it. I like the garlic smashed red potatoes - so lumpy wins for me. I so like what we refer to as potato filling, which is mostly potatoes, mashed but not whipped with sauteed onions and celery and then baked. Some people will add some bread cubes that are for making bread filling.