Preheat your oven to 350°F (175°C). Lightly grease your baking dish or line it with parchment paper for easy cleanup.

Without separating the rolls individually, slice the entire pack horizontally using a serrated knife. Keep the top and bottom halves intact.

Place the bottom half into the baking dish.

Arrange the ham evenly over the bottom layer. Fold the slices if needed so every roll gets a generous portion.

Place the cheese slices on top of the ham, covering it fully. Do not be shy here. That melted cheese is what makes these sliders irresistible.

Place the top half of the rolls back on.

In a small bowl, whisk together melted butter, Dijon mustard, honey, garlic powder, onion powder, parsley, poppy seeds, and a small pinch of salt.

The mixture should smell savory and slightly sweet.

Using a pastry brush, coat the tops of the rolls evenly with the butter mixture. Let some drip down the sides. That is flavor soaking into every bite.

Cover the baking dish with foil and bake for 15 minutes.

Remove the foil and bake for another 5–10 minutes, until the tops are golden brown and the cheese is fully melted.

Let the sliders cool for about 5 minutes. Then slice along the roll lines and serve warm.