Classic Tuna Melt Sandwich

Section: Satisfying Main Dishes for Every Occasion

This classic tuna melt is an easy go-to for lunch or dinner, made with albacore tuna, creamy mayonnaise, Dijon mustard, and a blend of fresh herbs. It's layered with buttery fontina cheese and sliced tomatoes between thick slices of rustic bread, then grilled until golden and melty. Ready in just 15 minutes, this hot sandwich delivers rich, satisfying flavor in every bite. Great with chips or a crisp salad, it’s a simple comfort dish you’ll want to make again and again.

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Published By Ioana
Updated on Mon, 28 Jul 2025 16:41:48 GMT
A tuna melt sandwich on a plate. Bookmark
A tuna melt sandwich on a plate. | ioanacooks.com

This classic tuna melt features a creamy, well-seasoned tuna filling paired with buttery fontina cheese and thick rustic bread. It comes together quickly and is perfect for lunch or dinner with minimal effort.

I often turn to this sandwich when I need something satisfying but easy. It’s become a favorite for casual meals and always hits the spot.

Ingredients

  • Mayonnaise: creates a creamy base for the tuna mixture choose quality full-fat for best texture
  • Dijon mustard: adds a subtle tang that lifts the filling
  • Lemon juice: fresh-squeezed brings brightness and cuts richness
  • Fresh thyme chives and parsley: provide herbal complexity use fresh for best aroma
  • Black pepper: freshly ground enhances flavor gently
  • White albacore tuna: well drained to avoid sogginess opt for high-quality canned tuna
  • Rustic French or Italian bread: thickly sliced 1/2 to 3/4 inch ensures sturdy sandwiches
  • Unsalted butter: soft for spreading and toasting the bread
  • Fontina cheese: shredded melts beautifully but sharp white cheddar is a fine alternative
  • Tomato: thinly sliced adds freshness and balances richness
A tuna melt sandwich with lettuce and tomato. Bookmark
A tuna melt sandwich with lettuce and tomato. | ioanacooks.com

Step-by-Step Instructions

Prepare the Tuna Filling:
Combine mayonnaise Dijon mustard lemon juice thyme chives parsley and black pepper in a medium bowl Gently fold in the drained tuna breaking it up slightly to combine evenly
Assemble the Sandwiches:
Spread butter on the outside of each bread slice then flip over Layer cheese on four slices followed by the tuna filling two tomato slices and more cheese Top with remaining bread slices butter side out
Heat the Pan:
Warm a nonstick skillet or cast iron pan over medium heat ensuring even warmth for toasting
Cook the Sandwiches:
Place sandwiches in the pan Cook for three to four minutes on each side until bread is golden and cheese is melted Check underside after one to two minutes to avoid burning Adjust heat if needed
Serve:
Enjoy warm alongside potato chips and a dill pickle spear if you like

Storage Tips

Leftover tuna filling keeps well for up to three days refrigerated in an airtight container This allows you to prepare sandwiches fresh whenever you want

Ingredient Substitutions

Try wheat or rye bread for a different flavor and texture Mozzarella or mild cheddar cheese also melt well if fontina is unavailable Add finely chopped celery or capers for extra crunch and tang

A tuna melt sandwich with tomatoes and lettuce. Bookmark
A tuna melt sandwich with tomatoes and lettuce. | ioanacooks.com

Serving Suggestions

Serve with classic potato chips or a simple side salad for a light contrast Pair with tomato soup or broccoli cheddar soup for a comforting meal combo

Cultural Context

The tuna melt is an American diner favorite blending tuna salad and grilled cheese It has regional variations but the simple combination remains beloved for its warmth and convenience

Frequently Asked Questions About Recipes

→ What kind of tuna works best?

White albacore tuna is ideal for a creamy, mild flavor. Make sure to drain it thoroughly before mixing.

→ Can I substitute the cheese?

Yes, sharp white cheddar or mozzarella are great alternatives to fontina if you prefer different flavors.

→ How thick should the bread be?

Slice the bread 1/2 to 3/4-inch thick to ensure it holds the filling and toasts evenly without overcooking.

→ How do I store leftover tuna filling?

Store any unused tuna filling in an airtight container in the refrigerator for up to 3 days.

→ What are good sides for a tuna melt?

Potato chips and dill pickles are classic, but fries, side salad, or tomato soup also pair wonderfully.

→ Can I add extras to the tuna mixture?

Absolutely! Try adding chopped celery, relish, hot sauce, or even bacon or avocado for added flavor and texture.

Classic Tuna Melt Sandwich

Crispy, cheesy tuna melt with herbs and rustic bread. Quick, savory comfort for any meal.

Time Needed to Prep
5 minutes
Cooking Duration
8 minutes
Overall Time
13 minutes
Published By: Ioana

Category of Recipe: Main Dishes

Preparation Difficulty: Easy to Make

Type of Cuisine: American

Number of Portions: 4 How Many It Serves (4 sandwiches)

Dietary Preferences: Made for Vegetarians

Ingredients You'll Need

→ Tuna Filling

Ingredient 01 1/3 cup mayonnaise
Ingredient 02 1 teaspoon Dijon mustard
Ingredient 03 2 teaspoons lemon juice
Ingredient 04 2 tablespoons finely chopped fresh thyme
Ingredient 05 3 tablespoons finely chopped fresh chives
Ingredient 06 3 tablespoons finely chopped fresh parsley
Ingredient 07 1/8 teaspoon freshly ground black pepper
Ingredient 08 12 ounces white albacore tuna, thoroughly drained

→ Sandwich Assembly

Ingredient 09 8 slices rustic French or Italian loaf bread, 1/2 to 3/4-inch thick
Ingredient 10 4 tablespoons unsalted butter, room temperature, divided
Ingredient 11 1 1/2 cups shredded fontina cheese or sharp white cheddar
Ingredient 12 1 large tomato, thinly sliced into 8 slices

Steps to Follow

Step 01

In a medium bowl, combine mayonnaise, Dijon mustard, lemon juice, thyme, chives, parsley, and black pepper. Gently stir in the drained tuna, breaking it up slightly.

Step 02

Spread butter on the outside of each bread slice. Flip the slices over and layer cheese, tuna mixture, tomato slices, and additional cheese on four slices. Top with remaining bread, butter side facing out.

Step 03

Warm a nonstick skillet or cast iron pan over medium heat.

Step 04

Place sandwiches in the skillet and cook for 3–4 minutes per side until the bread is golden and cheese is melted. Check the underside after 1–2 minutes and adjust heat if browning too quickly.

Step 05

Serve hot with potato chips and a dill pickle spear if desired.

Extra Tips

  1. Slice bread 1/2 to 3/4-inch thick. Too thin and it won’t support the filling; too thick and it won’t heat through properly.

Tools You'll Need

  • Nonstick skillet or cast iron pan
  • Mixing bowl
  • Spatula

Allergen Information

Carefully check food labels for allergens and consult an expert if you're uncertain.
  • Contains dairy (cheese, butter)
  • Contains eggs (mayonnaise)
  • Contains fish (tuna)
  • Contains gluten (bread)

Nutritional Information (Per Serving)

Remember, these values are for guidance only and shouldn't replace advice from a professional.
  • Calories Per Serving: 766
  • Total Fat: 56 grams
  • Carbohydrate Amount: 25 grams
  • Protein Amount: 40 grams