Cut rolls horizontally into 3 parts.
Spread butter on all cut surfaces.
Layer salami slice and cheese slice on bottom part of each roll.
Place second part of roll on cheese; top with turkey slice and sprinkle blue cheese on turkey.
Cover sandwich with third part of roll.
Wrap each sandwich individually in heavy-duty aluminum foil.
(To serve immediately, see below.) Label and freeze.
35 minutes before serving, heat oven to 450Â°.
Remove Individual .
Hot Sub Sandwiches from freezer; heat wrapped sandwiches on oven rack 30 minutes.