Preheat oven to 400 F.

Cut squash in half and rub with olive oil.

Season squash with salt and pepper and place cut side down on foil lined pan.

Roast in oven for 45 minutes to an hour.

Remove from oven and let cool slightly.

Scrape out insides of squash into a paper towel or flour sack towel lined collander and press out liquid.

Press squash into a greased 8x8 inch pan.

Pour sauce on top.

Sprinkle both cheeses over top.

Place pepperoni on top of cheese.

Cook for approximately 20 minutes.

Broil for an additional 2-4 minutes if you like the cheese browned and pizza like.