Preheat the oven to 400 degrees Fahrenheit.
Add the ground beef, parmesan cheese, breadcrumbs, salt, pepper, onion powder, ½ of the garlic powder, and ½ teaspoon Italian herbs to a large bowl and mix until very well combined.
1 pound lean ground beef, ¼ cup parmesan cheese, ¼ cup breadcrumbs, 0.5 teaspoon dried Italian herbs, ½ teaspoon onion powder, ½ teaspoon salt, ¼ teaspoon ground black pepper, 0.5 teaspoon garlic powder
Form the meat into 12 equal-sized meatballs and place them on a parchment-lined baking sheet.
Bake the meatballs in the preheated oven for 25 minutes, or until they are no longer pink in the center. Remove from the oven and set aside.
Place the rolls on a baking sheet or baking dish lined with parchment paper. Without separating the rolls, cut the tops off with a serrated knife and set them aside.
12 Sweet Hawaiian Rolls
Lay 6 slices of mozzarella cheese on the bottom layer of rolls.
6 slices of mozzarella cheese
Spread ½ cup of marinara sauce over the cheese.
4 ounces marinara sauce
Arrange the meatballs evenly over the sauce, ensuring there will be one meatball per slider.
Pour another ½ cup of marinara sauce evenly over the meatballs.
4 ounces marinara sauce
Arrange the remaining slices of cheese over the meatballs.
6 slices of mozzarella cheese
Lay the tops of the rolls gently on top of the final cheese layer.
Brush the melted butter over the tops of the sliders and sprinkle the remaining garlic powder, Italian herbs, and Parmesan cheese evenly over the top.
0.5 teaspoon garlic powder, 2 Tablespoons butter, 0.5 teaspoon dried Italian herbs
Bake the sliders in the preheated oven for about 14 minutes or until the tops are golden brown and the cheese is fully melted. Top with parsley, if desired.
Fresh parsley
Serve the sliders warm with the leftover marinara sauce for dipping.