Preheat the oven to 300 F. and line two baking sheets with parchment paper.
Carefully separate egg whites from yolks. Places whites in one bowl and yolks in another.
In the bowl of egg yolks, add cream cheese and mix together with a hand mixer until well-combined.
In the bowl of egg whites, add cream of tartar and salt. Using a hand mixer, mix together at a high speed until stiff peaks form.
Pouring slowly, use a spatula or spoon to add yolk mixture to egg whites and carefully fold in until there are no white streaks.
Gently pour mixture onto prepared baking sheet and bake for 30 minutes, until top is lightly golden brown.
While it’s baking, slice the green olives, and slice 3 of the black olives in half lengthwise. Slice the remainder of the black olives in half, lengthwise, but slice them into half-moon shapes for the spider legs.
Remove the pizza from the oven and add the pizza sauce, some cheese, the pepperonis, 6 halved olives and the legs to match.
Place two sliced green olives on each pepperoni, then cover the pepperoni with cheese to resemble a mummy.