The tuna melt is a diner-style classic for a reason—it’s hearty, melty, and quick to make. Whether you’re craving something warm and comforting or just need a quick lunch idea, this sandwich hits the spot every time. With just a few pantry staples, you can whip up a crispy, cheesy tuna melt that rivals any café version. If you are more into the classic sandwich, check out my basic tuna sandwich recipe.

What Makes a Great Tuna Melt?

A great tuna melt starts with a flavorful tuna salad—usually made with canned tuna, mayo, a bit of mustard, and diced celery or onion for crunch. It’s piled onto your favorite bread, topped with cheese (cheddar is the go-to), then grilled until the bread is golden brown and the cheese is gooey.

This recipe sticks to the basics but gives you plenty of room to personalize. Swap in sourdough, rye, or even English muffins. Prefer Swiss over cheddar? Go for it. Add sliced tomato or pickles for extra zing. The beauty of the tuna melt is in its versatility.

Tuna Melt Tips for Success

Drain the tuna well so the salad isn’t watery.
Use mayo to taste—start with less and add more if needed for creaminess.
Butter the bread for that perfect golden crispness.
Use a lid when melting—covering the skillet for a minute or two helps the cheese melt faster without burning the bread.

Storage and Make-Ahead Notes

Make Ahead:
You can prepare the tuna salad a day or two in advance and store it in an airtight container in the fridge. Assemble and grill the sandwich fresh for the best texture.

Storage:
Tuna melts are best eaten hot and fresh, but leftovers can be stored wrapped in foil in the fridge for up to 1 day. Reheat in a skillet or toaster oven to revive the crispiness—avoid the microwave if possible.

Tuna Melt

Prep Time 10

Cook Time 5

Total Time 15

This classic Tuna Melt Sandwich is the ultimate comfort food, toasted bread, tuna salad, and melty cheese come together for a delicious meal.

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Ingredients

▢ 1 can (5 oz) tuna, drained
▢ 2 tablespoons mayonnaise Store-bought or homemade
▢ 1 teaspoon Dijon mustard
▢ 1 tablespoon diced celery
▢ kosher salt and black pepper to taste
▢ 4 slices bread, white, whole wheat, Texas Toast, or sourdough
▢ 1 tablespoon unsalted butter, softened
▢ 2 slices cheddar cheese
▢ 2 slices mozzarella cheese

Instructions

In a bowl, mix together the tuna, mayo, mustard, and celery or onion. Season with salt and pepper to taste.
Butter one side of each slice of bread.
Heat a skillet over medium heat. Place two slices of bread butter-side down in the pan.
Spread tuna salad on each slice, top with a slice of each kind of cheese, and place the remaining bread slices on top, butter-side up.
Grill for 2–3 minutes per side, pressing lightly with a spatula, until the bread is golden and the cheese is melted.
Slice and serve hot.