Serious Eats shows us how to take this frugal, perhapspeasant, cooking approach in our own kitchens.
(Because who wants to eat the same bowl of soup every day for a week?)
Something brothy is a good start, perhaps with a few vegetables.
Maybe an addition of meat on day two.
The Neverending Soup Pot: An Improv Routine to Kick Your Dinner Rut to the Curb| Serious Eats