Divide ground beef in 8 mounds.
Flatten each between squares of waxed paper to a little less than 1/2 inch.
Set half the patties aside for "lids." Combine cheese and pars ley.
Top remaining patties with Blue-cheese Filling, leaving 1/2 inch margin for sealing.
Cover filling with "lids," sealing edges well.
Broil 3 inches from coals about 6 minutes; sprinkle with salt and pepper.
Turn; broil 6 minutes more.
Season second side.
Slip pat ties into hot toasted buns.