How to Make a Tuna Melt

Step 1
Place tuna into a mixing bowl and lightly break it apart with a fork. Add celery, green onion, capers, mayonnaise, and chile paste. Pinch in small pieces mozzarella and stir to mix. Season with salt and black pepper; refrigerate tuna salad until needed.

Step 2
Preheat the oven's broiler. Line a baking sheet with aluminum foil.

Step 3
Spread butter generously on both sides of French bread slices.

Step 4
Broil buttered bread until golden brown on top, 2 to 3 minutes. Flip bread slices and broil other side until toasted, 2 to 3 more minutes. Remove from the oven and turn bread slices over on the baking sheet so the darkest sides are on the bottom.

Step 5
Gently spread tuna salad onto bread slices using 2 forks. Press the salad onto the bread and spread tuna all the way to the edges of the bread. Spread shredded Cheddar over each sandwich. Dust tops with cayenne pepper.

Step 6
Place sandwiches under the broiler and cook until cheese is melted and bubbling, 5 to 6 minutes.