Sausage Mushroom Quiche Appetizers

Preheat oven to 325 degrees F. Coat a nonstick mini-muffin tin generously with cooking spray.

Heat a large skillet over medium-high heat. Add sausage and cook until golden brown, 6 to 8 minutes crumbling pieces as you cook so you have tiny crumbles. Transfer to a bowl to cool.

Add butter to the same pan. Add mushrooms and cook, stirring often, until golden brown, 5 to 7 minutes. Transfer mushrooms to the bowl with the sausage. Let cool for 5 minutes. Then stir in cheese and pepper.

Whisk eggs and milk in a bowl. Divide the egg mixture evenly among the prepared muffin cups. Sprinkle a heaping teaspoon of the sausage mixture into each cup.

Bake until the tops are just beginning to brown, 30 minutes. Let cool on a wire rack for 5 minutes. Place a rack on top of the pan, flip it over and turn the quiches out onto the rack. Turn upright and let cool completely.