
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

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

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.