I use oatmeal soaked in milk to extend meat in my loaf. But same concept. I throw in vegetables sometimes….onions of course. Shredded carrots. Mushrooms. What ever I have. Shredded potatoes ….or I top the meat loaf with mashed potatoes when its going into the oven. Golden mushroom soup poured undiluted on top. But that’s ‘fancy’ for WW1 era.
OldMtWoman