It could be anything, and will probably show a lot of regionality. To my mind, it's usually fairly plain honest food - though I love a good microgreens salad, it doesn't strike me as particularly homey. I'd have a hard time choosing between these two menus:
Meatloaf with real brown gravy and mash, peas with almonds and onions and a green salad with a simple vinaigrette, or:
Roast chicken with pan juices, scalloped potatoes, definitely a green buttered veg., and more salad, homemade Thousand Island dressing.
I don't eat like this too often, but I do love a nice "Square Meal" a few times a month, health be damned.
Either menu has either fudge layer cake or apple pie and vanilla bean ice cream for afters.
Tell me about yours, please?