This Amazing Tuna Melt sandwich takes this iconic sandwich to heights you just can't imagine. It all starts with the Best-Ever Tuna Salad, and then the rest just comes together beautifully. Simple, straightforward and unbelievably delicious!
Heat a medium-sized skillet over medium high heat and add remaining butter.
Meanwhile, build the sandwiches by starting with 1 bread slice, buttered side down. Add 1 slice of cheese, then about 1/2 cup of the tuna salad, then 1 or 2 slices tomato, a pinch of salt and pepper, another slice of cheese, and another slice of bread, buttered side on top. Repeat to build 4 sandwiches.
Carefully add 1 or 2 sandwiches into the hot skillet. Cook until lightly browned on the bottom, about 2 to 3 minutes.
Flip and cook the other side until toasted on the bottom, another 2 to 3 minutes.