Creating Mini Grilled Cheese Hawaiian Rolls is straightforward if you follow these simple steps:

1. Preheat Your Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Baking Dish: Grease a baking dish or line it with parchment paper for easy cleanup.
3. Mix the Butter and Spices: In a small bowl, combine melted butter, garlic powder, onion powder, salt, and black pepper.
4. Assemble the Rolls: Place the entire package of Hawaiian rolls in the baking dish. Without separating them, slice the rolls horizontally to create a top and bottom half.
5. Add Cheese: Sprinkle the shredded cheddar and mozzarella cheeses evenly over the bottom half of the rolls.
6. Brush with Butter Mixture: Use a brush to generously coat the top of the rolls with the butter mixture.
7. Bake: Cover the dish with aluminum foil and bake for 10 minutes. Remove the foil and bake for an additional 5 minutes or until the tops are golden brown and the cheese is melted.
8. Slice and Serve: Remove from the oven, let cool slightly, and slice the rolls into individual pieces.
9. Garnish: If desired, sprinkle fresh herbs on top for added flavor and presentation.

These steps will guide you in creating these incredible Mini Grilled Cheese Hawaiian Rolls effortlessly.