Cut the ham into strips. Cut mozzarella into slices. Spread a large pan (with lid) thinly with oil. Fry the tortilla patties in it at medium heat from each side 1⁄2 minute. Cover with half the sauce, ham, olives and mozzarella and bake in the covered pan for about 4 minutes.
Keep finished pizza warm. Prepare another pizza in the same way (or prepare the pizzas in two pans). Wash the basil, roughly chop the leaves, sprinkle the pizzas with it. Season with pepper.