I also make something similar to your recipe above, and just tweak along with other ingredients that I have available.
My children like barley, so I pressure cook barley (the quick cooking kind is awesome), and throw that into my soup. Also can add diced potatoes towards the end for a variation. If I want the soup to be extra filling, I’ll make a dumplings mixture, and spoon those in towards the last 15 minutes. Can also boil pasta, like orzo (look like grains of rice), or some other shape , and add to the soup.