01 -
Bring a large pot of salted water to a boil. Cook the spaghetti until just al dente, approximately 1–2 minutes less than package directions. Drain and toss with olive oil and marinara sauce. Stir in 60g mozzarella and 15g Parmesan cheese until evenly coated. Set aside.
02 -
Preheat oven to 190°C. Slice the slider buns horizontally, keeping the tops and bottoms intact. Arrange the bottom halves in a greased or parchment-lined 23x33cm baking dish.
03 -
Evenly spread the spaghetti mixture over the bottom half of the buns. Sprinkle with the remaining mozzarella and Parmesan cheese. Place the top halves of the buns over the filling.
04 -
In a small bowl, combine melted butter, garlic powder, dried parsley, and a pinch of salt. Brush the mixture generously over the tops of the slider buns. Sprinkle with the extra Parmesan cheese.
05 -
Cover the baking dish loosely with foil and bake for 10 minutes. Remove foil and bake for an additional 7–10 minutes until the tops are golden and the cheese is bubbly.
06 -
Allow sliders to cool slightly before slicing into portions. Serve warm, with additional marinara sauce on the side for dipping if desired.