Creating your Ham and Havarti Cheese Sliders is straightforward. Just follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Baking Dish: Lightly grease a 9×13-inch baking dish or line it with parchment paper for easier clean-up.
3. Slice the Rolls: Carefully slice the Hawaiian rolls in half horizontally, keeping them attached. Place the bottom halves in the prepared baking dish.
4. Layer the Ham: Evenly distribute the slices of ham over the bottom halved rolls.
5. Add Cheese: Layer the Havarti cheese slices on top of the ham.
6. Cover with Top Halves: Place the top halves of the rolls over the cheese.
7. Mix Butter and Mustard: In a small bowl, mix together the melted butter and Dijon mustard until well combined.
8. Add Spices: Stir in the poppy seeds, garlic powder, onion powder, salt, and pepper to the butter mixture.
9. Brush the Mixture: Pour or brush the butter mixture over the top of the slider rolls to coat them evenly.
10. Bake: Bake in the preheated oven for 15-20 minutes, until the cheese is melted and the tops are golden brown.
11. Serve: Remove the sliders from the oven, let them cool for a moment, then slice and serve warm.

By following these steps, you’ll create a plate of irresistible Ham and Havarti Cheese Sliders that everyone will appreciate!