Help This Debate Montana. Is it Casserole or Hotdish?

Everyone has those potluck dinners that they attend and are supposed to bring a dish to share. Or the family dinner that you put ketchup on to make it have some flavor. There are two very common dishes like this. One contains, hamburger, some elbow noodles, and some sort of tomato base. The other contains hamburger, tater tots, some people add a can of green beans, and then some cream of mushroom soup.

When I was growing up I recall those dishes being called Hotdish. Why? Because its a dish...and it is hot. Hot-Dish. Makes sense right? Then I run into people who are calling these dishes, casseroles...weirdo's. So I want to get the publics opinion. Are these dishes called Hotdish or Casseroles?

It seems like it is those southerners who call it a casserole, and the midwestern folks who call it a hotdish. Some even go as far as bringing these dishes to funerals, at that time they call it "Funeral hotdish". It's actually a thing.

Casserole: a stew or side dish that is slow cooked in the oven.
Hotdish: dish that typically contains a starch, a meat, and a canned or frozen vegetable mixed with canned soup that must be served hot or warm.

I mean, I am no genius, but from the actual definitions, I believe the proper term is Hotdish. Now, if you want to put some greenbeans and cream of mushroom soup in a dish and bake it with some fried onions on top, I will gladly have a scoop of your Green Bean Casserole.