Onion Tart - Taste of Thanksgiving

Inspired by a friend and restricted to only what is available in the house at the moment, a savory tart was made.

We are doing this for Brunch, Thanksgiving 2009 and serving with heirloom tomatoes - stay tuned to details on how exactly it will be done, but I'm thinking small hand tarts, so they can be snacked on and would fit on small plates.