Roast Beef Tenderloin

1 beef tenderloin (5 to 6 lb.)
1 clove garlic, halved (optional)
flour
salt to taste
3 bacon slices, cut crosswise in half
1 lb. mushrooms, sliced
2 tablespoons butter

1.   Trim off excess fat from meat.
2.   Place on rack in shallow roasting pan, folding thin end of meat under to  give
      even thickness.
3.   Rub with garlic.
4.   Dust lightly with flour.
5.   Season with salt.
6.   Top with bacon slices.
7.   Insert meat thermometer into center of thickest part of meat.
8.   Roast at 450°F for 45 to 60 minutes or until internal temperature  reaches
      140°F.
9.   Let stand about 10 minutes before slicing to serve.
10.Cook and stir mushrooms in butter.
11.Serve meat with reserved pan juices and mushrooms.

Serves 10 to 12