Remove celery leaves and cut celery heart to about 8 or 9 inches
long. Wash and dry. Keep bottom of celery heart intact. Do not remove
root. Gently pull branches apart and sprinkle with salt. Combine
cheese and pimiento; spread generously between celery branches.
Wrap heart tightly in foil; chill while preparing meat loaf.
Combine all remaining ingredients except bacon, then mix. Turn meat
mixture out onto large sheet of wax paper; pat out meat to an oval
about 11 x 12 1/2 inches, Cut off bottom of root of celery heart.
Place celery on center of meat; fold meat up and over celery. Pat
into roll shape, completely enclosing celery. Lay bacon slices in
chevron pattern over top of roll, making sure that slices overlap
slightly. Gently roll onto one side and tuck bacon ends underneath.
Use wooden picks to hold bacon ends in place, if necessary. Tie
roll securely with string but not so tightly as to cut roll. Wrap
in foil; seal top but do not close ends.
Bake at 325 degrees F for about 1 hour and 30 minutes.