Air Fryer Tuna Melts for the most perfect golden crust and melty cheese

Ingredients

• 1 can (5 oz) Canned Tuna in Water (drained)
• 2 Tbsp Mayonnaise (regular or light)
• 1 Tbsp Celery (finely diced)
• 1 Tbsp Red Onion (finely diced)
• 1 tsp Dijon Mustard (adds tang)
• 1 tsp Lemon Juice (freshly squeezed if possible)
• to taste Salt (preferably kosher)
• to taste Black Pepper (freshly ground)
• 2 slices Sourdough Bread (thick cut, about 1/2 inch)
• 2 slices Cheddar Cheese (sharp, sliced about 1/8 inch)
• 1 tsp Unsalted Butter (softened, for spreading on bread (optional))

Instructions

1. Prepare Tuna Salad

   In a mixing bowl combine the drained tuna, mayonnaise, diced celery, diced red onion, Dijon mustard, lemon juice, salt, and black pepper. Stir with a fork until evenly mixed but still slightly chunky.

   Time: PT5M

2. Assemble Sandwich

   If using butter, spread a thin layer on one side of each bread slice. Place a slice of cheddar cheese on the unbuttered side of one slice, add the tuna salad, then top with the second slice of cheese and the second piece of bread, buttered side up.

   Time: PT3M

3. Air Fry the Melt

   Preheat the air fryer to 375°F (190°C) for 2 minutes. Place the assembled sandwich in the basket, close the lid, and cook for 5 minutes, or until the cheese is fully melted and the bread is golden‑brown and crispy.

   Time: PT5M

   Temperature: 375°F

4. Serve

   Remove the sandwich with tongs, let it rest 1 minute, then cut diagonally and serve immediately.

   Time: PT2M

Nutrition Facts

Calories

420

Protein

25g

Carbohydrates

35g

Fat

18g

Fiber

2g

Ingredient Substitutions

• Instead of Canned Tuna in Water: canned salmon, canned chicken
• Instead of Mayonnaise: Greek yogurt, sour cream
• Instead of Celery: finely diced cucumber, pickles
• Instead of Red Onion: white onion, shallots
• Instead of Dijon Mustard: yellow mustard, whole grain mustard
• Instead of Lemon Juice: apple cider vinegar, white wine vinegar
• Instead of Salt: sea salt, soy sauce (use less)
• Instead of Black Pepper: white pepper, paprika
• Instead of Sourdough Bread: whole wheat bread, rye bread
• Instead of Cheddar Cheese: Swiss cheese, American cheese, mozzarella
• Instead of Unsalted Butter: margarine, olive oil

Equipment Needed

• Air Fryer
• Mixing Bowl
• Fork
• Knife
• Cutting Board
• Spatula

Critical Steps — Do Not Skip

• Mix tuna salad until just combined; over‑mixing can make it mushy.
• Air fry until cheese is fully melted and bread reaches a deep golden color; under‑cooking leaves cheese solid and bread soggy.

Chef Tips from the Video

• Use a sharp cheddar for a more pronounced flavor and better melt.
• Add a thin slice of dill pickle or a dash of hot sauce to the tuna salad for extra zing.

Troubleshooting

Storage

Refrigerator: Tuna salad can be stored in an airtight container for up to 2 days. Reheat assembled sandwich in the air fryer for 2‑3 minutes if needed.

Freezer: Not recommended for the assembled sandwich; tuna salad can be frozen for up to 1 month but texture may change.

Room temperature: Consume within 2 hours of cooking; do not leave at room temperature longer.

Make-Ahead Tips

• Prepare the tuna salad a day ahead and keep it chilled; give it a quick stir before assembling.
• Toast the bread lightly before assembling if you plan to store the sandwich for a short time.

Frequently Asked Questions