Mix flour, sugar and 1/2 teaspoon salt in a mixing bowl. Dissolve yeast in 250 ml lukewarm water. Add the yeast mixture and 3 tablespoons of oil to the flour and knead to a smooth dough with the dough hooks of the hand mixer. Cover and leave to rise in a warm place for about 50 minutes. Wash the tomatoes and cut into thin slices. Clean and halve the mushrooms.
Peel garlic and chop finely. Heat 1 tablespoon of oil in a frying pan, fry the garlic and mushrooms for about 10 minutes (until the liquid has evaporated). Season with herbs, salt and pepper. Drain the mozzarella and cut into slices. Grate Gouda finely. Knead the yeast dough on a floured work surface and roll out into a rectangle (32 x 38 cm). Place on a greased baking tray. Spread tomato-pizza-sauce on top, leaving a rim of about 1 cm. Cover with tomato slices, mushrooms and ham. Spread Mozzarella and Gouda on top. Drizzle with 2 tablespoons of oil.
Knead the yeast dough on a floured work surface and roll out into a rectangle (32 x 38 cm). Place on a greased baking tray. Spread tomato-pizza-sauce on top, leaving a rim of about 1 cm. Cover with tomato slices, mushrooms and ham. Spread Mozzarella and Gouda on top. Drizzle with 2 tablespoons of oil. Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) on the lower level for 25-30 minutes. Remove from the oven, cut into pieces and serve immediately
Waiting time approx. 50 minutes