Preheat the oven to 425°F and line a baking sheet with parchment.

Roll out the pizza dough on a floured surface to about 1/4 inch thick.

Cut as many hearts as possible with a 3-inch heart-shaped cutter, rerolling the scraps once.

Place the hearts on the baking sheet and brush each lightly with olive oil.

Spread about 1 teaspoon pizza sauce over each heart, leaving a small border bare.

Top with mozzarella and a few pepperoni pieces, keeping them near the center so the cheese doesn't slide off the edges while baking.

Sprinkle with the oregano.

Bake for 10 to 12 minutes, until the cheese is melted and bubbling and the edges of the dough are golden brown.

Cool for 3 minutes on the pan before moving (the cheese is lava-hot straight from the oven), then serve warm with extra sauce for dipping.