Preheat your oven to the highest heat possible.
Form the pizza dough into a ball. Start by making a circular motion with the palm of your hand, with some pressure. Then release the pressure gradually until you get a nice ball shape. Put your pizza dough balls on a lightly floured work surface. Dust them with a little more flour, and let them proof, covered with a kitchen towel, for another 15 minutes.
Shape your dough into a large, thin disk and place it in a pizza pan.
Put the tomato purée (passata) on your pizza dough, in the middle. With the back of a spoon or a ladle, using circular motions toward the edges, make sure the tomato covers your pizza dough. Leave an edge about 1 inch (2-3 cm) thick.
Drizzle a few drops of extra virgin olive oil and sprinkle on some dried oregano and salt.
Add mozzarella cheese. Just tear it into bite-size pieces and place them over the tomato sauce.
Top the pizza with the cooked ham. Add it in whole slices or tear it into bite-size pieces.
Cut the artichoke hearts into 4 or 8 pieces. Place them on top of the pizza.
Transfer your ham & artichoke pizza to the oven. Bake for 10 minutes, or until the edges are slightly browned.