Keep rolls in connected slab — don't separate before baking. Layer order: salami, pepperoni, turkey, cheese. Butter goes over the top of the assembled rolls. Cover with foil for full 20 minutes. Make slaw while sliders bake — it should be cold when sliders are hot. Tomatoes go on before slaw so they don't make the top roll soggy. Dress slaw lightly — coated but not swimming. Don't assemble with slaw until ready to serve. Make-ahead: assemble without slaw, refrigerate, bake adding 5 minutes.