At Domino's Brazil, they offer a Banana Pizza and a Chocolate Pizza.
The Banana Pizza (shown above) comes topped with mozzarella, banana, sugar, and cinnamon. I'm a bit curious as to how the mozzarella works with other ingredients.
Pizza Hut Brazil has a similar item that they call the Brigadeiro Pizza. A brigadeiro is basically a Brazilian chocolate bonbon and is covered with chocolate sprinkles. The pizza is much the same:
But Brazil, isn't the only country where the pizza chain's offer dessert pizza.
At most Domino's locations in the Middle East, there's the Chocolate Calzone:
But that's not to say they haven't offered dessert pizza here in the States.
Back in 2007, Domino's was offering the Oreo Dessert Pizza:
Photos via Domino's.