Preheat your oven to 350°F (175°C).
Slice the slider buns in half horizontally, keeping them attached to each other.
Place the bottom half of the buns in a baking dish.
Spread a layer of mayonnaise on the bottom half of the buns. Spread a layer of Dijon mustard on the top half of the buns.
Layer the spiral sliced ham evenly over the bottom buns. Place a slice of cheese on top of the ham.
Place the top half of the buns over the cheese and ham layer.
Make the Butter Mixture:
In a small bowl, mix together the melted butter, poppy seeds, 1 tablespoon Dijon mustard, minced onion, and Worcestershire sauce.
Add the Butter Mixture:
Pour the butter mixture evenly over the top of the sliders, ensuring the buns are well coated.
Cover the baking dish with aluminum foil. Bake in the preheated oven for 15 minutes.
Remove the foil and bake for an additional 5 minutes, or until the tops are golden brown and the cheese is melted. Remove from the oven and let cool slightly before serving.
Cut the sliders apart and enjoy
6 servings