This crustless bacon and mushroom quiche is a delicious and easy-to-make dish that is perfect for breakfast, brunch, or even dinner. It is packed with savory flavors from the crispy bacon and earthy mushrooms, and the creamy custard filling adds a rich and satisfying texture. This quiche is also versatile, as you can customize it with your favorite vegetables or cheeses. Serve it warm or at room temperature for a comforting and satisfying meal.