Sounds like Hobo Stew
Fry hamburg with onions, drain
using a baking dish first put creamed corn in the bottom and spread evenly
then put fried hamburger in an even layer over the corn and top with mashed potatoes
place pats of butter, salt and pepper on top and bake covered about 30 mins at 350
A friend from way back taught me this one but she called it a french name that i cannot spell....thus, hobo stew.