This is a really great tuna salad recipe I got from a friend who used it in her catering service business many years ago. The secret ingredients are the curry and Parmesan cheese! Odd combinations but this makes a terrific tuna sandwich! She used it for an appetizer with gourmet crackers and people always wanted her recipe. I have never tasted another tuna salad quite like this one, and it has been my favorite recipe for tuna salad for many, many years.