01 -
Set the oven temperature to 350°F (175°C).
02 -
Lightly grease a 9x13 inch baking dish using cooking spray or butter.
03 -
Carefully slice the entire package of Hawaiian rolls horizontally, keeping individual rolls attached. Place the bottom halves in the baking dish.
04 -
Combine mayonnaise and Dijon mustard in a small bowl, then spread evenly over the bottom halves of the rolls.
05 -
Distribute slices of turkey, ham, and roast beef evenly over the mayonnaise-coated rolls.
06 -
Sprinkle shredded Swiss and cheddar cheeses evenly over the layered meats.
07 -
Place the top half of the rolls over the layered ingredients, aligning with the bottoms.
08 -
Melt butter over low heat in a saucepan. Remove from heat and stir in Worcestershire sauce, garlic powder, onion powder, and poppy seeds until well combined.
09 -
Generously brush the butter mixture over the top halves of the slider rolls, ensuring thorough coverage.
10 -
Cover the baking dish tightly with aluminum foil and bake for 20 minutes.
11 -
Remove foil and continue baking for 10 to 15 minutes until the tops are golden brown and cheese is melted.
12 -
Remove from oven and allow to cool for several minutes. Garnish with chopped parsley.
13 -
Slice carefully along the seams to separate sliders. Serve warm.