This is actually the soup from the "GM diet." I saw it on Pinterest, I'm pretty sure GM didn't actually create it, but from what I could find it didn't seem to be harmful so I tried the diet. I had a friend who lost 7 lbs on it, I lost nothing, BUT I actually liked the soup for it and so did a friend of mine who tried it so while I don't think I'll repeat the diet ever, I probably will make the soup from it again.
Cabbage, onions, green pepper, celery & any other veggies you wish (I used asparagus, zucchini, and yellow squash). Put all of those in a pot of water, bring to a boil, stir in dry onion soup mix, and slow cook until veggies are done.