Preheat your oven to 175°C (350°F). Lightly butter the baking dish to prevent sticking.
Slice the Hawaiian rolls horizontally in half, keeping the top attached like a lid. Place the bottom half in the prepared baking dish.
Layer the slices of honey-glazed ham evenly over the bottom bun, covering the entire surface. Follow with pineapple slices arranged on top of the ham.
If using cheese, layer slices over the pineapple, ensuring even coverage for gooey, melted goodness.
Place the top bun over the assembled layers, pressing down gently to help everything stick together.
In a small saucepan, whisk together honey, soy sauce, and sriracha. Bring to a gentle simmer over medium heat, stirring until the glaze is shiny and slightly thickened, about 2 minutes.
Use a basting brush to generously coat the top and sides of the sliders with the glaze, creating a glossy, caramelized finish. Let sit for 5 minutes to soak in.
Melt the butter and brush it lightly onto the cut sides of the buns. Then, toast the buns in a skillet until golden and crispy, about 2-3 minutes per side.
Pour the remaining glaze over the assembled sliders, ensuring all areas are coated evenly. Place the dish in the oven and bake for 15–20 minutes until the tops are golden and caramelized, and cheese is bubbly if used.
Remove from the oven, let rest for 5 minutes, then slice into individual sliders with a serrated knife. Garnish with toasted sesame seeds if desired and serve warm.