Yum, that sounds a lot like the weight loss cabbage soup recipe I used to make in the 90s. That used a package of french onion soup mix instead of chicken broth but otherwise pretty much the same -- I used quite a bit of celery in mine as well.
One of the things I like with leftover or just buying a bag of shredded cabbage is what I call "Mostly Mu Shu". Add a sliced or diced onion, more carrots if you have them, and if you have precooked leftover pork, chicken or shrimp cut that into small strips as well -- or stir fry the meat first with a bit of soy sauce, garlic and ginger. Then throw in the cabbage and vegies and cook them down as well, you might need to add a little liquid (stock, rice vinegar and/or water) or oil. You need a big pan to start with before the cabbage settles down. Just before the end of cooking hit everything with some hoisin sauce. Serve taco style wth preferably thin flour tortillas. You can also have plum (duck) sauce.
Is easy to google, here is one recipe similar to how I make itL:
https://www.gimmesomeoven.com/moo-shu-pork/