All ingredients ready? Let's begin!
Grab a 9x13-inch baking dish.
Using a serrated knife, slice the buns in half horizontally through the center.
Fold a piece of ham to fit on top of each bun's bottom half.
Fold a slice of cheese and place that on top of the ham.
Then, fold another piece of ham to fit on top of the cheese.
Place the bun tops on each slider filling.
Place the sliders inside the baking dish lined up next to one another.
In a small saucepan over medium heat, melt the butter and honey.
Stir or whisk in the Worcestershire sauce and Dijon mustard.
Brush or spoon the sauce all over the sandwiches, allowing it to drip down the sides of the sliders.
Sprinkle the poppy seeds all over the tops of the buns.
Cover the baking dish with aluminum foil. It is believed that this dish is best if you place the sliders in the fridge for up to 4 hours to “marinate” before baking. This step is optional, in my opinion.
Preheat your oven to 350°F. Place the covered baking dish in the preheated oven. Bake for 10 minutes.
Remove the foil and continue to bake until the cheese has melted and the tops of the buns are golden and a little crisp. This will take approximately 5 to 10 minutes.
Serve the sliders while warm and gooey with plenty of napkins.