Start by making the pie crust using the step by step guide found above
Once the pie crust is made using the flash bake method, start building your quiche.
Preheat Oven to 375
Cook bacon until it's really crispy (Trust me, nobody likes a chewy bacon in their quiche). Break into pieces once its finish cooking.
Wisk together 12 eggs and 1/2 c of milk (or cream)
Cut your potatoes, sweet onion, and mushrooms really thin.
Chop your garlic and spinach to the size you prefer. (I like my garlic chopped fine and my spinach a little bigger...just a few chops)
Begin layering your potatoes, sweet onions, mushrooms, garlic, spinach, and cheese.
Pour egg mixture over vegetables and cheese to help fill in the cracks
Bake in the oven for 45 min- 1 hour, or until the egg has fully formed.
One final step, switch oven to broil and sprinkle the desired amount of cheese on top of quiche.
Let broil for a few minutes (Keep careful watch as perfectly golden can change to burnt quickly on this setting).
Voila! A tasty, nourishing, delicious sourdough quiche!