(Yes, this is real.)
Classic Minnesota. People up there refer to 'hot dish' as if it is one thing, even though it's really any type of casserole, and also act like each individual can only make one kind of 'hot dish'. Example: "hey have you ever had my grandma's hot dish?" or "my dad made his hot dish today, hell yeah". In the latter example, his dad's Hot Dish was onions and ground beef with a ton of soy sauce, served with chow mein noodles on top.