Pre heat oven to 200C.

In a bowl combine the yoghurt and flour until mixed together.  Tip out onto a dusted bench and knead for a few minutes until the dough comes together.  Then spread out evenly into a rectangle.

Top with a thin spread of pizza sauce, cheese and ham slices then roll tightly into a roll.  Slice into pinwheels and lay flat on a lined baking tray.

Bake in the oven for 15 minutes.