Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper.
Unroll the pizza dough and cut it into about 12 equal pieces.
Spread a small spoonful (about a teaspoon) of pizza sauce in the center of each dough piece, leaving a small border around the edges.
On top of the sauce on each piece, add a tiny spoonful of cooked crumbled sausage, a few mini pepperoni slices, and a sprinkle of shredded mozzarella cheese. Do not overfill.
Carefully fold one side of the dough over the filling to meet the other side. Pinch the edges tightly all the way around to seal everything inside.
If using the melted butter, brush the tops and sides of each roll lightly. Then, gently press the tops of the rolls into your bowl of crushed Doritos to coat them.
Place the coated rolls onto the prepared baking sheet, making sure the Doritos side is facing up. Leave a little space between them.
Bake for 12–15 minutes, until golden brown and crispy.
Remove from the oven and let them cool on the baking sheet for just a few minutes before serving.