Step 1

In a mixing bowl combine tuna, mayonnaise, celery, pickled red onion, dill, and chives. Season with salt and pepper and stir together.

Step 2

Spread 1/2 tablespoon butter over each slice of bread and turn two slices butter side down.

Step 3

Top each butter side down slice of bread with tuna mixture.

Step 4

Top with sliced tomatoes, shredded cheese and remaining slices of bread.

Step 5

Preheat air fryer to 400˚F (if needed).

Step 6

Spray air fry basket with cooking spray and place sandwiches in coated fryer basket.

Step 7

Air fry tuna melt for 4 minutes.

Step 8

Flip sandwich and continue to air fry for an additional 3 minutes.

Step 9

Remove from air fryer, cut in half and serve.