1Combine the ground beef, Worcestershire sauce, mustard, salt,
and pepper in a bowl and mix thoroughly. Divide the mixture into
8 equal portions and form into patties about 1/4 inch (5 mm)
2Sprinkle the bacon and blue cheese over 4 of the patties.
Top with the remaining patties and press the edges together to
enclose the filling. Grill over hot coals or fry in a skillet over
moderate heat until cooked through, about 5 minutes per side.
3Serve on bread of your choice with garnishes of your choice.