Springtime Asparagus Quiche

Serve this deep dish asparagus quiche for lunch or brunch, or make it for a party or gathering. Feel free to cut back on mushrooms or use a little less asparagus if you'd like to add a little ham, diced cooked bacon, or diced leftover chicken or turkey.

_{Asparagus quiche image ©2009 Diana Rattray, licensed to About.com, Inc.}