(Optional First Step) – Arrange mushrooms onto ovenproof tray, gills up. Sprinkle with salt and cook in oven heated to 375°F (190°C) for 20 minutes. Remove from oven and drain away liquid from pan and mushrooms

Arrange mushrooms onto baking tray, gill up. Spread 2 tbsp marinara sauce onto each, followed by 1/4 of the mozzarella (approx 20g or 2 tbsp). Finally arrange 5 slices of pepperoni onto each pizza

Bake in the over for 20 minutes at 375°F (190°C) until cheese begins to turn golden and bubbly. Serve immediately.