Step 1

Preheat your oven to 350 degrees F. Line a baking sheet with aluminum foil.

Step 2

Use a serrated knife to cut the rolls in half, separating the top from the bottom. Set the bottom half of the rolls on the prepared baking sheet.

Step 3

In a small bowl, mix together the mayonnaise and mustard. Spread half of the mayo mixture over the cut side of the roll bottoms.

Step 4

Lay the ham slices and then the turkey slices over the roll bottoms so all of the bread is covered. I'm usually able to put 4 slices per layer. Lay the cheese over the meats, letting the slices overlap until all the meat is covered.

Step 5

Spread the rest of at mayo mixture over the cut side of the roll tops. Carefully turn the roll tops over the cheese, cut side down.

Step 6

Melt the butter in a small bowl. Stir in the parsley and garlic powder until combined. Use a pastry or basting brush to spread the butter mixture all over the tops of the sliders. (You may have some extra butter.)

Step 7

Bake the sliders for 15 minutes, or until the cheese is melted and the rolls are golden and slightly crispy.

Step 8

Remove from the oven and use a spatula or sharp knife to cut the sliders apart. Serve immediately.