Pioneer Woman's Cowgirl Quiche

Mom and I are cooking one different recipe each week from The Pioneer Woman Cooks: Food From My Frontier cookbook and reporting out. If they are good, we will post them and if we don't like them we will not. I love quiche and needed to use some leeks that I had leftover that needed to be cooked so this was a perfect recipe to use that up. There is just something magical that happens when you combine mushrooms, leeks and prosciutto! If you don't have this cookbook, I highly suggest you get...