Looks like my mother’s old recipe - she’d cover the top in catsup, and sometimes use day old bread instead of oats.
Depression comfort food. Some of the best in the world. Made delicious sandwiches the next day.
We used to love it when we got cold meatloaf sandwiches to take to school for lunch. Hard to believe though that we didn’t get sick from leaving the food at room temp for hours before eating it at lunch.