01 -
Set oven temperature to 350°F (177°C) and allow to fully preheat.
02 -
Arrange the bottom halves of slider buns in a 9x13-inch baking dish, ensuring a snug fit.
03 -
Spread an even layer of pizza sauce over the bottom buns. Distribute pepperoni slices over the sauce, then cover with an even layer of shredded mozzarella.
04 -
Position the top halves of the slider buns over the cheese layer.
05 -
Brush melted butter generously over the tops of the buns. Sprinkle with garlic powder, Italian seasoning, and grated Parmesan cheese.
06 -
Cover the baking dish tightly with foil and bake for 15–20 minutes, or until the cheese is melted and sliders are heated through.
07 -
Remove the foil and bake an additional 3–5 minutes until the bun tops are golden brown. Serve sliders warm with extra pizza sauce for dipping if desired.