01 -
Preheat oven to 350°F (175°C).
02 -
Sauté thinly sliced onions in bacon drippings over medium heat until soft and caramelized, approximately 10 minutes. Allow to cool slightly.
03 -
Layer half the caramelized onions in the pie crust, followed by half the sliced tomatoes and half the crumbled bacon. Repeat with remaining onions, tomatoes, and bacon to complete the layers.
04 -
In a mixing bowl, combine mozzarella cheese, mayonnaise, sour cream, flour, garlic powder, salt, and pepper until thoroughly integrated.
05 -
Spread the cheese mixture evenly over the layered ingredients. Place pie on a baking sheet and bake for 35-40 minutes until bubbling and golden brown.
06 -
Remove from oven and allow to rest for several minutes. Optionally garnish with fresh parsley or chives before slicing and serving.