White Bean Soup with Sweet Potatoes

We are gearing up for Thanksgiving in our house.  By gearing up I mean, I'm working longer hours at the store because 'tis the season, I have not gone grocery shopping or thought too terribly much about Thanksgiving dinner, and I keep fantasizing about making a gluten free and vegan pumpkin pie that does not rely on a lot of flour of any type to thicken it.  I doubt the pumpkin pie will happen