In a medium mixing bowl stir together cheese, ham, vegetables, pickle, and olives, if using. Set aside. Spread some of the cream cheese on one side of each slice of bread. Sprinkle one spread side of a slice of whole wheat bread with about 1/3 cup of the vegetable mixture. Top with another slice of white bread. Trim off crusts, if desired. Slice each sandwich into four strips. Place in an airtight container. Chill in refrigerator several hours or overnight. Place in an insulated container with ice packs for up to 4 hours. Makes 24 sandwiches.