Crazy Green Vegetable Soup

I made this to use up a bunch of vegetables that we got from Cati and Jon's CSA box this week. It really is an insane shade of green.

Stock (I used a mixture of ham and chicken stock)
Soup celery
Collard greens, chopped
Diced root vegetables (I used: carrots, baby turnips, parsnips, and potatoes)
Minced garlic
Diced, peeled eggplant

Simmer the soup celery for a while in the stock, until you're happy with the smell and flavor.
Add the collards and simmer until they are reasonably tender. Puree the stock; it'll now be that crazy green color.
Add the diced root vegetables and garlic. Simmer until the vegetables start getting tender, then add the eggplant. Simmer until done.