I think of butternut soup as being a very friendly soup. Most people respond well to to pretty much any version of it.
I also like silky smooth, sweet cauliflower soup as an accompaniment for the sandwiches.
Oh, and a creme of celery.
Otherwise, a lentil soup is nice for this as well.

Last edited by Saria; 10-09-2010 at 02:45 AM.