Follow these easy steps to create your Ham and Cheese Sliders on Hawaiian Rolls:

1. Preheat your oven to 350°F (175°C).
2. Grease a 9×13-inch baking dish with cooking spray or butter.
3. Slice the entire tray of Hawaiian rolls in half horizontally, creating a top and bottom.
4. Place the bottom half of the rolls in the greased baking dish.
5. Layer the ham slices evenly over the bottom half of the rolls.
6. Place the cheese slices on top of the ham.
7. Carefully place the top half of the rolls back onto the cheese.
8. In a small bowl, mix the melted butter, Dijon mustard, brown sugar, garlic powder, and onion powder.
9. Pour the mixture evenly over the top of the rolls, ensuring all are coated.
10. Cover the baking dish with aluminum foil and bake for 20 minutes.
11. Remove the foil and bake for an additional 10-15 minutes, until the top is golden and crispy.
12. Allow the sliders to cool for a few minutes, then slice and serve warm.

These steps will guide you through the process of making these scrumptious sliders with ease and perfection.