First, I preheat my oven to 350°F so it’s hot and ready to go. I line a 9×13 inch baking dish with aluminum foil then spray it lightly with cooking spray to prevent sticking. Having everything ready makes the rest so easy!
I melt the butter in a microwave-safe bowl, then mix in minced garlic, oregano, and chili flakes. This aromatic butter becomes the flavor base brushed on the rolls to give them a rich, savory crust during baking.
Using a long serrated knife, I slice the Hawaiian rolls in half lengthwise, keeping them connected as one piece. This helps them bake evenly and makes cutting the sliders into neat squares easier later.
I brush a third of the garlic butter over the bottom half, then layer provolone, pepperoni, and finally mozzarella. This order ensures every bite is cheesy, savory, and well-seasoned.
I set the top half of the rolls on, brush the rest of the garlic butter over the top, then cover with foil. I bake for about 20–22 minutes until the cheese melts, then uncover for another 3–5 minutes to brown the tops lightly.
After baking, I let the sliders sit for a minute before slicing. I always serve them warm with marinara sauce for dipping — it gives the full classic pizza flavor.