Sugarpea, thanks so much for this wonderful recipe! I made this as is except that I used a smoked swiss/cheddar cheese for the topping. My husband and I loved this! How nice to have a tuna salad mixture that does not include mayonnaise. I have leftovers of the tuna salad and I think it will taste great over greens (for my lunch on Monday). Again, thanks Sugarpea for a wonderful recipe that I will be making for the rest of my life!