For the Halloween pizza faces, first prepare the topping sauce.
For the topping sauce, heat the oil and sauté the chopped garlic and onion.
Add the tomato paste and fry. Stir in the strained tomatoes and season with salt, pepper and oregano.
If the sauce is too thick, thin it with a little water. Cut out circular pieces from the pizza dough and spread with a little topping sauce.
Slice the mozzarella balls and top the pizza pieces with them.
Make the eyes out of olive slices, the mouth out of anchovy fillets. The bacon pieces are used for the hair of the Halloween pizza faces.