Easy crustless quiche with bacon and leeks

Name: Easy crustless quiche with bacon and leeks
Cuisine: European, Mediterranean, French
Ingredients: Scale; 4 eggs; ½ package Grass Roots bacon; ½ cup crumbled goat cheese; ½ cup freshly grated parmesan cheese + 3 tablespoons; 1 cup whole milk; ½ cup heavy cream; 1 tablespoon unsalted butter; 1 leek, sliced into half moons and rinsed; ½ teaspoon salt, ¼ teaspoon pepper