Combine first 6 ingredients in a medium bowl. Cover and chill 30 minutes.
Shape cheese mixture into a ball; roll in chopped parsley, coating thoroughly. Cover and chill at least 3 hours.
Serve with Melba toast rounds or low-fat crackers (rounds and crackers not included in analysis).
Tip: We tested this cheese ball using only fat-free cream cheese, but found that a combination of fat-free and reduced-fat cream cheese produced a creamier dip.