Peel onions and cut them into rings. Clean, wash and cut the peppers into strips. Coarsely grate cheese. Take pizza dough out of the tin and unroll. Line a baking tray with baking paper and place the dough, formed into a rectangle, on top.
Spread chunky tomatoes on top and season with salt, pepper and oregano. Spread paprika and onions on top and sprinkle with cheese. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 20 minutes.