Step 1: Heat the oven to 400°F or 200°C. Lightly grease a 12 cup muffin tin with cooking spray or a thin film of olive oil so the pizza roses release easily after baking.
Step 2: Unroll the refrigerated pizza dough on a lightly floured cutting board. Gently press it into an even rectangle and trim the edges if needed so the sides are straight.
Step 3: Using a sharp knife or pizza cutter, slice the dough into 6 long strips, each about 1.5 inches or 4 cm wide. Try to keep the strips as even as you can so they bake at the same rate.
Step 4: Spread a thin line of marinara or pizza sauce along each strip, leaving a small clean border along the long bottom edge. This clean edge helps the dough seal when you roll it up.
Step 5: Lay slices of mozzarella along the sauced portion of each strip. Let the top edge of the cheese peek just above the top edge of the dough so it will show as the roses bake.
Step 6: Arrange pepperoni slices on top of the cheese with about half of each slice hanging past the top edge of the dough. That overhang will become the petal edges of your pizza roses as they puff in the oven.
Step 7: Starting from one short end, roll each strip up into a spiral, keeping it snug but not too tight. When you reach the end, pinch the loose edge of dough to the base so the rose holds together.
Step 8: Place each rolled pizza rose into a cup of the prepared muffin tin with the cut spiral facing up. Brush the tops lightly with olive oil and sprinkle with Italian seasoning or oregano if using.
Step 9: Bake for 12 to 15 minutes, until the dough is deep golden on the edges, the cheese is melted and the centers look baked through. If the tops brown too quickly, move the pan to a lower oven rack.
Step 10: Let the pizza roses cool in the pan for about 5 minutes to set, then use a small offset spatula or butter knife to gently lift them out. Serve warm on a platter as Valentine party appetizers or with salad for a simple dinner.
Sweet variation: To make dessert style pizza roses, fill the dough strips with softened cream cheese or hazelnut spread and thin berry slices instead of sauce, cheese and pepperoni. Roll, place in the muffin tin, sprinkle with sugar, and bake until puffed and golden. Dust with powdered sugar before serving.