Dissolve yeast in 200 ml of lukewarm water. Knead with 300 g flour, 1⁄2 TL salt, 1 pinch of sugar and oil with the dough hooks of the mixer to a smooth dough. Cover and leave to rise in a warm place for about 30 minutes.
Drain the pineapple. Clean, wash and slice the mushrooms. Cut Kabanossi into thin slices. Clean, wash and slice spring onions. Knead dough with floured hands.
Roll out on a slightly floured baking tray (approx. 35 x 40 cm). Leave to rise for a further 20 minutes.
Drain the pepperoni. Season pizza tomatoes with oregano, salt, pepper and paprika. Spread the dough with it. Cover half of the pizza with Kabanossi, spring onions and pepperoni. Spread the sour cream in splotches on top.
Cover the other half with pineapple, mushrooms and ham. Sprinkle everything with cheese. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for about 20 minutes.