# What You Need:
→ Tuna Salad
01 - 1 can (5 oz) 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 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)
# Directions:
01 - Combine drained tuna, mayonnaise, Greek yogurt, diced celery, diced red onion, chopped Calabrian chili peppers, Dijon mustard, lemon juice, salt, and pepper in a medium bowl. Mix until well blended.
02 - Lay out all sourdough bread slices and spread softened butter evenly on one side of each slice.
03 - Place two slices of bread with buttered side down on work surface. Distribute half of the tuna salad mixture on each slice, then top each with two slices of cheese.
04 - Cover each sandwich with the remaining buttered bread slices, positioned with buttered side facing up.
05 - Heat a large skillet over medium heat. Place sandwiches in the skillet and cook for 3 to 4 minutes per side, pressing gently with a spatula, until bread achieves golden-brown color and cheese melts completely.
06 - Transfer sandwiches from skillet to serving plates. Drizzle each sandwich with Calabrian chili oil and garnish with fresh chopped parsley if desired.
07 - Slice each sandwich in half diagonally and serve immediately while warm.