Classic Tuna Melt Sandwich

Featured in: Snack & Starter Ideas

This classic tuna melt features a creamy blend of tuna, mayonnaise, and Dijon mustard combined with celery and red onion for crunch and zest. Layered on your choice of bread with sharp cheddar cheese, it's buttered and grilled to golden perfection. The result is a warm, crispy sandwich with melted cheese and a flavorful filling, ideal for a speedy lunch or snack. Variations include adding tomato slices or swapping cheeses for different tastes. Serve hot for the best experience.

Updated on Sat, 13 Dec 2025 09:14:00 GMT
A toasted Classic Tuna Melt Sandwich, oozing melted cheese and creamy tuna salad spilling out. Save to Pinterest
A toasted Classic Tuna Melt Sandwich, oozing melted cheese and creamy tuna salad spilling out. | metrochop.com

A golden, crispy sandwich filled with creamy tuna salad and gooey melted cheese — the perfect quick and satisfying snack.

I first served this classic tuna melt on a chilly afternoon and it quickly became a family favorite for its comforting taste and simplicity.

Ingredients

  • Tuna Salad: 1 can (5 oz / 140 g) tuna, drained, 2 tbsp mayonnaise, 1 tsp Dijon mustard, 1 stalk celery, finely chopped, 1 tbsp red onion, finely chopped, 1 tsp lemon juice, salt and freshly ground black pepper, to taste
  • Sandwich: 4 slices sandwich bread (white, whole wheat, or sourdough), 4 slices cheddar cheese (or Swiss), 2 tbsp unsalted butter, softened

Instructions

Step 1:
In a bowl, mix together the drained tuna, mayonnaise, Dijon mustard, celery, red onion, lemon juice, salt, and pepper until well combined.
Step 2:
Lay out the bread slices. Spread the tuna salad evenly over two slices. Top each with two slices of cheese.
Step 3:
Cover with the remaining bread slices to form sandwiches.
Step 4:
Butter the outsides of each sandwich (one side per slice).
Step 5:
Heat a nonstick skillet or griddle over medium heat.
Step 6:
Place the sandwiches buttered side down on the skillet. Cook for 3–4 minutes, pressing gently, until golden brown.
Step 7:
Flip and cook the other side for another 3–4 minutes, until the bread is golden and the cheese is melted.
Step 8:
Remove from skillet, slice in half, and serve hot.
Perfectly browned bread surrounds a cheesy and delicious Classic Tuna Melt Sandwich, ready to enjoy. Save to Pinterest
Perfectly browned bread surrounds a cheesy and delicious Classic Tuna Melt Sandwich, ready to enjoy. | metrochop.com

My family always gathers around the kitchen table to enjoy these sandwiches together, making it a cherished weekend treat.

Notes

Try adding sliced tomato or pickles for extra flavor. Swap cheddar for Swiss or provolone for a different twist. Serve with a side of potato chips or a light salad.

Required Tools

Mixing bowl, spoon or spatula, knife and cutting board, skillet or griddle, spatula

Allergen Information

Contains fish (tuna), egg (mayonnaise), dairy (cheese, butter), gluten (bread). Always check labels for allergen information, especially for mayonnaise and bread.

Enjoy this simple and satisfying Classic Tuna Melt Sandwich, a quick lunch with melted, cheesy goodness. Save to Pinterest
Enjoy this simple and satisfying Classic Tuna Melt Sandwich, a quick lunch with melted, cheesy goodness. | metrochop.com

This classic tuna melt is a quick, comforting snack that never fails to satisfy.

Recipe FAQ

What type of bread works best for this sandwich?

White, whole wheat, or sourdough bread all work well, providing sturdy texture and great flavor when grilled.

How can I make the tuna filling more flavorful?

Incorporate finely chopped celery and red onion for crunch, and add Dijon mustard and lemon juice for brightness and tang.

What cheeses pair well with tuna for melting?

Cheddar is classic, but Swiss or provolone also melt nicely and complement the savory tuna filling.

How should I cook the sandwich to get a crispy golden crust?

Butter the outside of the bread slices and grill on medium heat, pressing gently until golden brown on both sides and cheese melts.

Can I customize this sandwich with additional toppings?

Yes, try adding sliced tomato or pickles for extra flavor and texture to enhance the sandwich's complexity.

Classic Tuna Melt Sandwich

A golden, crispy sandwich with creamy tuna and melted cheese for a quick satisfying bite.

Prep Time
10 minutes
Bake/Cook Time
8 minutes
Time Needed
18 minutes
Recipe By Elizabeth Perry


Skill Level Easy

Cuisine American

Makes 2 Portions

Dietary Needs None specified

What You'll Need

Tuna Salad

01 1 can (5 oz) tuna, drained
02 2 tablespoons mayonnaise
03 1 teaspoon Dijon mustard
04 1 celery stalk, finely chopped
05 1 tablespoon red onion, finely chopped
06 1 teaspoon lemon juice
07 Salt and freshly ground black pepper, to taste

Sandwich

01 4 slices sandwich bread (white, whole wheat, or sourdough)
02 4 slices cheddar cheese
03 2 tablespoons unsalted butter, softened

How-To Steps

Step 01

Prepare Tuna Salad: Combine drained tuna, mayonnaise, Dijon mustard, celery, red onion, lemon juice, salt, and pepper in a mixing bowl; mix thoroughly.

Step 02

Assemble Sandwiches: Place bread slices on a work surface. Evenly spread tuna salad onto two slices; top each with two slices of cheddar cheese.

Step 03

Form Sandwiches: Cover each with the remaining bread slices to create two sandwiches.

Step 04

Butter Sandwich Exteriors: Spread softened butter over the outer sides of each sandwich slice.

Step 05

Heat Cooking Surface: Preheat a nonstick skillet or griddle over medium heat.

Step 06

Cook First Side: Place sandwiches buttered side down on the skillet; cook for 3 to 4 minutes, pressing gently until golden brown.

Step 07

Cook Second Side: Flip sandwiches and cook the other side for 3 to 4 minutes until bread is golden and cheese has melted.

Step 08

Serve: Remove from heat, slice sandwiches in half, and serve while hot.

Tools You'll Need

  • Mixing bowl
  • Spoon or spatula
  • Knife and cutting board
  • Skillet or griddle
  • Spatula

Allergy Notes

Always check each ingredient for allergens and reach out to a healthcare provider if you're uncertain.
  • Contains fish (tuna), egg (mayonnaise), dairy (cheese, butter), and gluten (bread). Verify labels for allergens.

Nutrition Details (per portion)

These details are for informational purposes and aren't a substitute for professional medical guidance.
  • Energy: 430
  • Fats: 26 g
  • Carbohydrates: 29 g
  • Proteins: 23 g