Preheat your oven to 350°F. Prepare your 9x13-inch inch baking pan by spraying it with nonstick spray.
Slice the whole package of rolls (without separating them). Place the bottom halves of the rolls into the prepared baking pan.
12 Hawaiian rolls
Place half of the cheese slices onto the rolls, then layer on all of the ham and turkey, and the other half of the cheese slices.
12 slices deli ham, 12 slices swiss cheese, 12 slices deli turkey
Then place the top halves of the rolls on top.
In a small bowl, whisk together the melted butter, egg, and pepper. Brush this mixture all over the sliders.
⅓ cup salted butter, 1 large egg, ½ teaspoon ground black pepper
Bake for 25 minutes or until the cheese is melted and the buns are toasted. If the buns start turning too brown, cover them loosely with tented tin foil.
Sprinkle the tops with powdered sugar and serve with jam on the side if desired.
1 Tablespoon powdered sugar, Raspberry or strawberry jam