01 - Set oven temperature to 350°F for baking.
02 - Slice Hawaiian rolls horizontally in half, keeping them attached together in the sheet.
03 - Place bottom roll halves in baking dish or on lined baking sheet.
04 - Place one cheese slice on each roll bottom, overlapping as necessary for even coverage.
05 - Replace top halves of rolls onto cheese layer.
06 - Whisk together melted butter, garlic powder, dried parsley, and salt in small bowl.
07 - Brush butter mixture generously over roll tops using pastry brush.
08 - Bake for 12-15 minutes until cheese melts completely and tops achieve golden brown color.
09 - Remove from oven, cool briefly, separate into individual sandwiches, and serve warm.