Hello;
I have no special soup recipes but can give you a few items to throw into the pot that might aid in your own experimentation.
I usually use what is handy at the time.
As an example:
Spinach, cabbage, garlic, green onions, sour kraut, veggie kim chi, tomato, various herbs, flax seeds, sesame seeds, mushrooms, pine nuts, raisins, apple, dandelions, carrots, mints,pickle, etc.
If it doesn't work out and the taste is lacking, then just analyze what screwed it up. I have found that most mixtures taste fairly good and it seldom becomes so bad that it needs to be thrown away.
I do enjoy some recipes but why limit ourselves. The yard and gardens are filled with healthful herbs and things to aid in your health and fun.
The vitamix is a great science project to stretch your mind and imagination. Mushroom soup is good but why not add to it?
Common sense in picking herbs/weeds is important but not the end all.
Cheers,
Ray