Remove the Dr. Oetker Ristorante Pizza Mozzarella from the packaging and film and leave to defrost for about 60 minutes. Cook the spaghetti in salted boiling water.

Meanwhile, puree the tomatoes in a pot with oregano, salt and pepper and bring to boil. Then mix the spaghetti and the cheese with 1/3 of the tomato sauce until the cheese melts.

Preheat the oven (top and bottom heat: 220˚C). Grease 26 cm springform with butter. Place one of the pizzas in the spring form and press down on the edges lightly. Spread the spaghetti over the pizza and then place the second pizza on top. Place the pizza spaghetti cake on the middle shelf of the oven and bake for about 20 minutes.

Slice the pizza spaghetti cake and serve with the rest of the tomato sauce.