Preheat oven to 400F. Cut thin slice from top of bread. Scoop out the bread leaving a 1/2 inch thick crust. Place both halves with cut side up on a baking sheet. Bake for 5 minutes or until the bread has a slightly toasted look. Remove from oven.

Combine chicken and remaining ingredients except the lettuce leaves in a mixing bowl. Line bread shell with lettuce leaves, overlapping slightly. Put chicken mixture on top. Place top of bread over. Cut into 4 equal size pieces. Serve with cherry tomatoes.