01 - Preheat oven to 350°F.
02 - Keep Hawaiian rolls connected and slice horizontally through entire package to create top and bottom halves.
03 - Place bottom roll half on parchment-lined baking sheet.
04 - Distribute cheese slices evenly across bottom. Layer bacon and tomato if desired.
05 - Position top roll half over cheese layer.
06 - Brush roll tops generously with melted butter.
07 - Cover loosely with foil and bake 10 minutes until cheese melts completely.
08 - Remove foil and bake 3-5 minutes longer until tops achieve golden brown color.
09 - Let rest 2 minutes, then separate into individual sandwiches and serve warm.