I've made quiches in pie plates, but I do tend to use a tart pan more. I love mine, it's green and is spongeware pottery similar to this one pictured. For some reason, I love spongeware, and so it adds to the experience. It also looks amazing with a spinach quiche in it, since the pan is the same color as the spinach. The latest trend seems to be making crustless quiches, but I love pastry crust, so still make mine in a crust.
I've never heard of "spongeware". Why is it called spongeware???
I've heard tell before, if you use a couple tablespoons of flour in your egg mixture when making a crust-less quiche, it will help the egg mixture make a crispy layer on the sides and bottom when baking.
I've had this once and it was pretty good.