I'm always and forever helpless in the face of a tuna melt - my favorite diner food after bacon egg and cheese on a roll - so I am doing that thing I do with classic recipes that are near and dear to my heart. And by that I mean I am messing with success by trying as many different spins as I can think of in an effort to eat as many tuna melts as humanly possible. In this case, I added a secret ingredient that had the Southern husband extremely concerned about his dinner prospects that night...but I'm happy to report that it turned out creamy, dreamy and delicious. Want to to take your tuna melts to luxurious new heights? Let's make it!