01 -
Preheat the oven to 190°C and lightly grease a muffin tin with nonstick spray.
02 -
In a skillet over medium heat, cook the diced onion and sliced mushrooms for about 5 minutes until softened.
03 -
In a bowl, whisk together the eggs, low-fat milk, salt, and pepper until fully combined.
04 -
Fold the sautéed vegetables and half of the cheese into the egg mixture, ensuring even distribution.
05 -
Pour the mixture into the prepared muffin tin, filling each cup three-quarters full, then sprinkle the remaining cheese on top.
06 -
Bake for 20 to 25 minutes until the quiches are puffed and golden brown. Let cool slightly before serving.