Neal Stephenson referred to the phenomenon as "recombinant cuisine" in Reamde and identified it as specifically Midwestern, although I think it is more broadly American. (But I am Midwestern, so maybe not :)
Some of the casseroles constructed that way from those days were legit delicious but I haven’t seen or heard of them since the prior millennium. I’m not even sure if some of the prefab ingredients are still available. I’d eat some of those again in a heartbeat. You don’t see it on the coasts anymore but the tradition still seems to exist in flyover areas.
NB: I just googled some of these things and the recipes appear to exist online, I just don’t know where to buy some of the canned ingredients.