Preheat your oven's broiler to high and line a baking sheet with foil. Slice the slider buns in half and place the bottom halves cut side up on the sheet. Toast them lightly for 3-4 minutes until just golden and crispy on the edges.
Warm the BBQ sauce gently in a small saucepan over low heat until fragrant and pourable, about 2 minutes. This makes it easier to spread and enhances its smoky aroma.
Lay slices of smoked ham on the toasted bottom buns, overlapping slightly to cover the surface evenly. Drizzle a generous amount of warm BBQ sauce over the ham, ensuring each slice is coated with sticky, smoky glaze.
Place cheese slices over the sauced ham, covering as much area as possible to melt into a gooey layer when broiled. Top with the remaining bun halves and gently press down to hold everything together.
Arrange the assembled sliders on the baking sheet and slide into the oven. Broil for 2-3 minutes, watching carefully, until the cheese is bubbly and golden, and the edges of the buns are caramelized and crispy.
Meanwhile, mix a teaspoon of honey into a little extra BBQ sauce for a shiny, sweet glaze. Once the sliders are ready, remove them from the oven and brush this glaze over the tops for a glossy, sticky finish.
Let the sliders rest for a minute or two to allow the cheese to set, then slice if desired and serve immediately. The caramelized edges, melted cheese, and smoky sauce create a messy, satisfying bite perfect for sharing.