Dreamy Mary Berry Mushroom Quiche Recipe: A Homestyle Gem - Worth Pinning

Ingredients

• 4 large eggs
• 1 cup (240 ml) Gruyere or Swiss cheese, grated
• 2 cups (473 ml) fresh mushrooms, sliced
• 1 ¼ cups (296 ml) heavy cream
• 1 small onion, finely chopped
• 1 prebaked 9-inch (23 cm) pie crust
• 2 tbsps fresh parsley, chopped (optional)
• Salt, to taste
• Pepper, to taste