Stir together vinaigrette and lime juice. Place cheese slices in a 13- x 9-inch baking dish; drizzle with 1 cup vinaigrette mixture, and set remaining vinaigrette mixture aside. Let cheese stand 20 minutes.
Slice top one-fourth off bread loaf. Scoop out bread, leaving a 1-inch-thick shell. (Reserve top and center for other uses.) Place shell on a baking sheet, and brush inside evenly with 1/2 cup vinaigrette mixture.
Bake at 400° for 12 to 15 minutes or until golden; cool. Line bread bowl with lettuce. Fill with tomato and cheese; top with bacon. Serve with remaining vinaigrette mixture.