Preheat the oven to 400 degrees Fahrenheit and line a baking sheet with parchment paper.

Unroll the pizza dough on a lightly floured surface and cut out 12 hearts using a 3 inch heart shaped cutter, rerolling scraps as needed.

Transfer the hearts to the lined baking sheet, spaced an inch apart.

Brush each heart lightly with olive oil, then spread about a teaspoon of pizza sauce over the center of each, leaving a small border bare.

Sprinkle the mozzarella evenly over the sauce, then press 2 mini pepperoni slices into the cheese on each heart.

Sprinkle the oregano over the tops.

Bake for 9 to 10 minutes, until the cheese is fully melted and just browning at the edges and the crust underneath is firm enough to lift without bending.

Let the bites cool on the pan for 3 minutes before moving them, since the cheese needs a minute to firm up.

Arrange them in a shallow basket or on a flat plate and serve warm with a small bowl of marinara alongside.

Reheat any leftovers at 350 degrees Fahrenheit for 5 minutes rather than in the microwave, to keep the crust from going soft.