Peel and chop the garlic. Wash and clean the tomatoes, grate them dry and cut them into large pieces. Heat oil in a pot. Sauté garlic until transparent. Stir in tomato paste.
Add the tomatoes and 75 ml water, cover and cook for 3-4 minutes. Season to taste with a little salt, pepper and sugar and let it cool down. Place flatbread on a baking tray lined with baking paper. Spread with tomato sauce.
Grate the cheese and sprinkle over it. Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for approx. 7 minutes. Clean, wash and drain the rocket. Tear the ham.
Remove the pizza, cover with rocket, olives and ham, cut into pieces and serve.