There’s been “Cup-o-Soup” for decades - made by Lipton, I think. This is the same idea, with the deleterious difference that the trash it generates is a plastic cup rather than a paper envelope.
Recently, I discovered savory teas (I posted about the Numi brand on the Drinks board). They come in a paper envelope that holds a teabag of decaf tea with other ingredients, in flavors like Tomato Mint, Spinach Chive, and Broccoli Cilantro . Somewhat unusual, and though not really a broth, surprisingly filling.
