Filling:

Combine the mortadella, turkey ham, mushrooms and the diced sweet pepper. Then, add the ground tomatoes and 2 tablespoons of oregano in one bowl. Mix well with a spatula.

In another bowl, mix the mozzarella and gruyere together.

Dough:

Mix the flour, powdered milk, baking powder and yeast together. Add the salt and sugar. Make a hole in the center and pour in the egg, vanilla and oil. Then, add the water gradually to form soft dough. Put the dough on a floured work surface. Knead for about 15 minutes until smooth.

Pizza:

Divide the dough into 8 balls. Cover with a nylon film and cloth. Let it rest for half an hour.

Divide each dough into small-sized balls.

Roll out each ball to form a small round circle.

Place the dough circles onto a tray next to each other.

Preheat the oven for 10 minutes at 250 degrees C.

Bake for 7 minutes.

In each circle, place one tablespoon of the filling. Then, add two black olives, and one round green pepper. Sprinkle the cheese on top and decorate with a sprinkle of oregano.

Place the pizza into the oven and bake until the cheese melts.