01 -
Set the oven to heat at 350°F (175°C). Cover a baking sheet with foil and lightly coat it with cooking spray.
02 -
Slice the rolls into halves and line the bottoms on the baking sheet. Lay mozzarella cheese over the bottom halves and keep the tops aside.
03 -
Pile your cooked spaghetti (use ground beef or other add-ins if you'd like) over the cheese layer.
04 -
Sprinkle or lay more mozzarella cheese right on top of the spaghetti.
05 -
Pop the roll tops back on and brush them with the melted butter. Sprinkle on Parmesan cheese, garlic salt, and Italian seasoning.
06 -
Place the sliders in the oven and bake uncovered for 20–30 minutes. Take them out when the cheese is gooey and the pasta is warmed through. Times may change based on roll size or how much pasta you used.