@rotuts You pretty much nailed it, you’re a great sleuth! Trim crust(TJ brioche), place bread between very lightly dampened paper towels. Roll gently to flatten and elongate slightly. Fill with your choice..this was ham, HB egg, mayo, mustard, sour cream,sriracha, very finely diced celery, salted and rolled in paper towel, pickle relish, also blotted dry, chives, parsley.
ETA when rolled you can use the dampened paper towel to torque it a bit prior to slicing. @rotuts