Next time, use some fresh ingredients.At least you will be able to control your soup's destiny!
A few bits of cabbage, some onion, some carrot, a few cooked beans, a garlic clove, a slice of bacon left over from breakfast, a potato, maybe, some green beans, some broken-up pasta, a little celery... Eco! There you have it. Make tons of it if you like and freeze it. Far better than packaged stuff and so easy to do - just whack everything in a large pot with salt and pepper and cook till it smells divine... then leave it till the next day and go down to your local Soprano's store to buy Ciabatta to wipe the plate clean.