Vegetable Quiche with Homemade Crust (Includes a Pesach version!)

Quiche, in all its beauty! So much to say, but so little time. Quiche was my first "real dish". It brought me from being a very, very amateur cook at 20 years-old first learning the basic steps of cooking from Alton Brown's show "Good Eats"   (which at the time, before Youtube, my brother sent me …