Season beef with salt and pepper.Dot with 2 tbsp.
butter.Melt remaining 2 tbsp. butter in small roasting
pan.Add carrot,leek and celery.Saute over low heat 8
minutes.Place beef in pan.Bake in preheated 500 degree
oven 25 minutes.Cool in pan juices 1 hour. In medium
skillet,heat oil and garlic.Cook 1 minute.Add bacon.
Saute until barely crisp.Drain on paper towels.Drain
all but 3 tbsp. drippings.Add mushrooms.Cook over
moderate heat 3 to 5 minutes.Remove,drain and set
aside. Place cooled meat on cutting board,pouring pan
juices into bowl. Add remaining ingredients to pan
juices,blending well.Add bacon and mushrooms.Taste for
seasoning.Cut wedge 1" wide and 1" deep along top
length of beef.Remove long triangular wedge.Spoon
stuffing evenly into cavity,filling with about 3 tbsp.
of stuffing.Replace wedge.Chill.To serve,cut beef into
3/4" slices.Accompany with remaining stuffing.Serves 6
to 8.
