Ditto Whole Foods. However, it is so easy to make your own and cheaper. You can just use one of those Pillsbury crusts that are rolled up in the dairy section and then add your own filling to taste. I do that all the time and freeze them whole if need be. :)
I just posted a question about making a quiche that is not heavy and more in between a custard and a quiche. I live in Reston and the only quiche I will buy and eat is from Patisserie Poupon on Wisconsin Avenue, just above Q Street, NW. Forget everything else.