Heat the oil in a non-stick frying pan. Stir fry the kohlrabi and chickpeas for approx. 5 mins. Add the oregano, season, remove from the heat, cover and keep warm.
Divide the dough into eight equal pieces. On a lightly floured surface, flatten into mini pizza bases (each approx. 10 cm in diameter). Heat a dash of oil in the same pan. Fry the pizza bases in batches over a medium heat for approx. 2 mins. on each side, remove and keep warm.
To top the pizzas
Spread the crème fraîche on top of the pizza bases, top with the kohlrabi, chickpeas, tomatoes and rocket, season.