1. Bake pie shell for 15 minutes; remove from oven and let cool.
2. In a medium bowl, combine mayonnaise, milk, eggs, marinara sauce, and flour. Mix well. Add mozzarella cheese, oregano, and broccoli; mix to combine.
3. Pour filling into pie shell and bake for 45 minutes to one hour.
4. Preheat oven to 350 degrees Fahrenheit.
This quiche freezes very nicely. Bake it and let it cool down. Wrap it up very well and freeze. When you’re ready to serve, place frozen quiche in oven at 350 degrees Fahrenheit for 45 minutes (or until warm).