This chicken and mushroom quiche is a savory and satisfying dish that is perfect for brunch or a light dinner. The flaky crust is filled with a creamy mixture of chicken, mushrooms, and cheese, creating a flavorful and comforting combination. Serve it warm or at room temperature, and pair it with a fresh salad for a complete meal. This quiche can also be made ahead of time and stored in the refrigerator for a quick and easy meal during the week.