01 - Preheat oven to 375°F. Grease a 9x13-inch baking dish with butter or nonstick spray.
02 - Using a bread knife, slice the slider buns horizontally in one piece to create a top and bottom slab, keeping the individual rolls attached. Place the bottom slab in the prepared baking dish.
03 - Spread the pizza sauce evenly over the bottom buns. Sprinkle half of the mozzarella cheese over the sauce layer.
04 - Arrange the pepperoni slices in a single layer covering the cheese. Top with the remaining mozzarella, distributing it evenly.
05 - Set the top slab of buns over the assembled filling, pressing down gently.
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 of the buns using a pastry brush.
07 - Sprinkle grated Parmesan cheese and a pinch of red pepper flakes over the glazed bun tops.
08 - Cover the dish loosely with aluminum foil and bake for 15 minutes. Remove the foil and continue baking for an additional 5 minutes until the cheese is fully melted and the tops are golden brown.
09 - Let the sliders rest for a few minutes. Garnish with chopped fresh basil if desired. Slice along the bun seams and serve warm.