# Ingredient List:
→ Tuna Salad
01 - 1 (5 oz) can tuna in water, drained
02 - 2 tablespoons mayonnaise
03 - 1 tablespoon Greek yogurt
04 - 1 celery stalk, finely diced
05 - 1 tablespoon red onion, finely diced
06 - 1 tablespoon Calabrian chili peppers in oil, finely chopped
07 - 1 teaspoon Dijon mustard
08 - 1 teaspoon fresh lemon juice
09 - Salt and black pepper to taste
→ Sandwich Assembly
10 - 4 slices sourdough bread
11 - 4 slices provolone or mozzarella cheese
12 - 2 tablespoons unsalted butter, softened
→ Garnish
13 - 2 teaspoons Calabrian chili oil
14 - Fresh parsley, chopped (optional)
# Steps:
01 - In a medium mixing bowl, combine drained tuna, mayonnaise, Greek yogurt, diced celery, diced red onion, chopped Calabrian chili peppers, Dijon mustard, and lemon juice. Season with salt and pepper to taste, then mix thoroughly until well blended.
02 - Lay out all four sourdough bread slices on a clean work surface and spread softened butter evenly on one side of each slice.
03 - Place two buttered bread slices on the work surface with buttered side facing down. Divide the tuna salad mixture equally between the two slices, spreading evenly. Top each with two slices of cheese.
04 - Cover each filled bread slice with a remaining buttered slice, positioning buttered side facing upward to ensure even toasting.
05 - Heat a large skillet over medium heat until moderately hot. Place both sandwiches in the skillet and cook for 3 to 4 minutes on the first side, pressing gently with a spatula until the bread achieves a golden-brown color. Flip carefully and cook the other side for 3 to 4 minutes until the cheese is completely melted and the bread is uniformly golden.
06 - Transfer sandwiches to serving plates. Drizzle each sandwich with 1 teaspoon of Calabrian chili oil and garnish with freshly chopped parsley if desired. Slice diagonally in half and serve immediately while cheese is still hot.