Yes! I started the thread that Jen posted the link to because when I was planning, there wasn't very much info about it on the DIS. Basically, you work through an event coordinator at your Disney resort, and yes you can do it for just two people.
All the details of costs, options, logistics are in that thread, but I think the info my planner gave me after our party about no longer being able to do hot food at UK Pubside (the location they give small parties) may not apply if your event is in 2010. It seemed like the restrictions were because of 2009's "What Will you Celebrate" promotion.