You can literally mix and match your fillings and seasonings in any way you want and create something very different from the last time you made them. Some of our favorite fillings include finely chopped cooked bacon, ham, pepperoni, sausage, caramelized onions, tomatoes, spinach, asparagus, red pepper, mushrooms, jalapeno, Swiss cheese, Gruyere cheese, goat cheese... are you getting the picture?? Literally you can put together any combination of fillings and then pour the egg mixture over the top of it, bake it, and you have mini quiche in a crisp, flaky crust.