01 - Preheat oven to 375°F. Lightly grease a 9x13-inch baking dish with butter or nonstick spray.
02 - Using a serrated bread knife, slice the slider buns horizontally in one piece, keeping the rolls attached. Place the bottom slab into the prepared baking dish.
03 - Spread the pizza sauce evenly across the bottom buns. Sprinkle half of the shredded mozzarella over the sauce layer.
04 - Arrange the pepperoni slices in a single, even layer over the mozzarella. Top with the remaining shredded mozzarella.
05 - Place the top slab of buns over the layered filling, pressing down gently to secure.
06 - In a small mixing bowl, combine the melted butter, honey, hot sauce, garlic powder, and dried Italian herbs. Brush the mixture generously over the tops and sides of the buns using a pastry brush.
07 - Sprinkle the grated Parmesan evenly over the glazed tops. Add a pinch of red pepper flakes if desired for extra heat.
08 - Cover the dish loosely with aluminum foil and bake for 15 minutes. Remove the foil and continue baking for 5 more minutes, until the cheese is fully melted and the bun tops are golden brown.
09 - Allow the sliders to cool for 3 to 5 minutes. Garnish with chopped fresh basil if desired. Slice along the bun seams and serve warm.