Wash the mushrooms.

Pat the mushrooms dry with paper towels. Then remove the stem and gills.

Brush olive oil onto the top and bottom of the mushrooms.

Lightly season with salt and black pepper. Set aside.

Cut the pepperoni slices into smaller pieces. Set aside.

Grate the block of mozarella cheese. Please do not use pre-shredded cheese as it sometimes does not melt as well. Set aside.

Now add about a teaspoon of pizza sauce to each of the mushrooms , add some cheese and top with pepperoni pieces.

Pre-heat oven to 425 degrees.

Coat the bottom of a baking dish with some olive oil and transfer the mushrooms to the baking dish.

Place the baking dish into the oven and cook for 20 minutes.

While the mushrooms are baking chop the fresh basil and set aside.

After the mushrooms have baked for 20 minutes, increase the heat to 500 degrees and cook for another 5 minutes.

After cooking the mushrooms at 500 degrees and if the top of the cheese still has not browned then you can place the mushrooms under the broiler for 30 seconds to a minute until they have slightly browned. This step is optional.

Remove the mushrooms from the oven and top with the chopped basils.

Serve immediately while warm.