Preheat your oven to 350°F (175°C).

Using a serrated knife, slice the entire sheet of Hawaiian rolls horizontally without separating the individual rolls. Place the bottom half into a greased baking dish.

In a small bowl, mix mayonnaise and Dijon mustard. Spread this mixture evenly across the bottom layer of rolls. This adds flavor and helps keep the sliders moist.

Place the sliced roast beef evenly across the rolls. Make sure the beef covers the entire surface so every slider gets a generous portion.

Lay the provolone cheese slices over the roast beef. The cheese will melt beautifully and hold the sliders together when baked.

Place the top half of the Hawaiian rolls over the cheese layer.

In a small saucepan, melt the butter. Stir in Worcestershire sauce, garlic powder, onion powder, poppy seeds, and dried parsley.

Brush the butter mixture generously over the tops of the rolls.

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

Remove the foil and bake for another 5 minutes until the tops become golden and slightly crispy.

Let the sliders cool for about 5 minutes. Slice them into individual sandwiches and serve warm.