Preheat your oven to 350°F. Fit the softened pie crust into a shallow-sided 9-inch glass pie plate, folding and crimping the edges for a homemade look.
Layer the crumbled bacon and a blend of Cheddar, Mozzarella, and Parmesan cheeses evenly on the bottom of the pie crust.
In a medium bowl, whisk together milk, eggs, salt, and pepper until well combined. Gently pour this mixture over the bacon and cheese layers in the pie crust.
Bake in the preheated oven for 45-50 minutes, or until the quiche is set and a knife inserted into the center comes out clean. Allow the quiche to rest for 5-10 minutes before slicing. DEVOUR!