01 -
Preheat the oven to 350°F. Line a baking sheet with aluminum foil and lightly coat with nonstick cooking spray.
02 -
Slice rolls in half horizontally. Place the bottom halves on the prepared baking sheet and layer each with mozzarella cheese.
03 -
Spoon the prepared spaghetti mixture evenly onto the cheese-layered bottoms.
04 -
Top the spaghetti layer with additional mozzarella cheese slices or shreds.
05 -
Replace the top halves of the rolls. Brush the tops with melted butter and sprinkle with grated Parmesan, garlic salt, and Italian seasoning.
06 -
Bake uncovered for 20 to 30 minutes, or until the cheese is melted and the sliders are heated through. Adjust baking time based on slider size and filling quantity.