Here's my idea for "five-kingdom stew".

It's red bean chili with mushrooms and kelp, served with some sour cream on top. Then you have "all" five kingdoms in there:

* red beans are the representatives of the plants.
* mushrooms are representatives of the fungi
* kelp is the representative of the protists. If someone has an idea for a more delicious protist, let me know.
* The cream comes from animals (I don't eat meat, but I know some people do)
* The sourness of the cream is from bacteria.

I don't know of any culinary archaea. If there are any, I'd love to know.
@MegaMichelle a brief review of a search for “edible Archea” points to them being important in salt fermented foods, so add in some fish sauce.