Slice the slider buns in half horizontally and place the bottom halves in the prepared baking dish.

Spread marinara sauce evenly over the bottom halves of the slider buns.

Sprinkle shredded mozzarella cheese over the marinara sauce.

Arrange ham slices (and any additional toppings) over the cheese layer.

Place the top halves of the slider buns over the toppings to form sandwiches.

In a small bowl, mix together melted butter, garlic powder, dried oregano, and dried basil.

Brush the butter mixture over the tops of the slider buns.

Cover the baking dish with aluminum foil and bake in the preheated oven for 10-15 minutes, or until the cheese is melted and the sliders are heated through.

Remove the foil and bake for an additional 5 minutes, or until the tops are golden brown and crispy.