Are you or do you have a vegan friend who remembers creamy dishes fondly but hasn't found a substitute?
This might do the trick:
http://veganchickie.com/2010/02/21/creamy-capsicum-pasta-sauce/ Basically cashews blitzed with water and left for 20mins so that the solids take up the liquid. So tasty and comes out rich and cream-esque while being totally vegan. Works a treat as a base for a pasta sauce!