For the best results, do not use chunk light tuna here. You can substitute one 6.7-ounce jar of Tonnino Tuna Fillets in Olive Oil, if desired. The sandwiches will just be a nice and thick.
FOR THE TUNA SALAD: Before preheating the oven, Adjust the oven rack to the middle position. Now preheat the oven to 425 degrees. Combine all ingredients in medium sized bowl. Tuna salad is great to make ahead to save time. If you are short of time make ahead and refrigerate for up to 3 days.
FOR THE SANDWICHES: Line rimmed baking sheet with aluminum foil. Melt your butter in the microwave and brush 1 side of each slice of bread with melted butter. Place 2 slices of bread, buttered side down, on prepared sheet. Top each slice of bread with 1 slice of cheddar, one-quarter of tuna salad, 1 slice of American cheese, and 1 remaining slice of bread, buttered side up.
Bake sandwiches until golden brown on top, about 8 minutes. Flip sandwiches using a spatula like this fish spatula and continue to bake until golden brown on second side and cheese is melted, 5 to 8 minutes longer. Let cool for 5 minutes. Cut in half and serve.
Notes
Note: This recipe was inspired by America’s Test Kitchen