Preheat oven to 325 degrees Fahrenheit

Prepare pie crust based on package directions or homemade pie crust recipe.

In a large bowl, whisk together eggs, milk, salt and pepper.

Sprinkle cheese and optional filling ingredients over the crust.

Pour egg custard over the cheese and fillings. Stir filling lightly and let settle for 30 seconds. Add the remaining custard.

Bake 45-50 minutes until the custard is set. A knife should come out clean after being inserted into the center.