Open-Faced Tuna Melts with Cheesy Golden Crust

Mediterranean Open Face Tuna Melts are a satisfying, flavorful lunch option built with flaky tuna, briny olives, melty cheese, and bright add-ins. This recipe gives the classic tuna melt a Mediterranean twist—it’s quick to prepare, protein-packed, and perfect for a cozy midday meal.

Why Make These Open Face Tuna Melts

This open-face tuna melt delivers the comforting combination of flaky tuna and gooey cheese, balanced by salty olives and bright vegetables. Compared with heavier, mayo-forward versions, this recipe is a little lighter thanks to the addition of white beans, which add creaminess, fiber, and a boost of protein. The result is both hearty and fresh—great for a satisfying lunch or quick weeknight dinner.

The recipe is fast and simple: most versions are ready in about 20 minutes from start to finish. It’s flexible, too—swap in canned salmon or chicken if you prefer, or add extra seasonings to make it your own. Overall, this is a reliable, crowd-pleasing dish that’s easy to adapt and scale for family meals or solo lunches.

Ingredients Needed

Canned tuna. Use high-quality albacore tuna in water for a clean flavor and flaky texture.

White beans. Canned white beans (cannellini or great northern) add creaminess and fiber and help bulk up the filling without extra heavy mayonnaise.

Seasonings. Simple dried oregano and freshly ground black pepper highlight the Mediterranean flavors; a pinch of paprika or lemon zest can be added if you like.

Dijon mustard. Stone-ground or classic Dijon adds tang and depth to the tuna mixture.

See the recipe card below for full ingredient amounts and optional swaps.

Recipe Variations

Protein swaps. Canned salmon or canned chicken are easy alternatives. Tuna packed in oil can be used but will add calories and richness.

Olives. Garlic-stuffed green olives are recommended for a burst of flavor, but any chopped olive will contribute salty umami.

Bean alternatives. If needed, chickpeas can be used instead of white beans, though the texture will be firmer and the filling slightly less creamy.

Cheese. Swiss or cheddar are excellent choices for melting. Provolone also melts well and lends a milder flavor.

Steps To Make This Recipe

Step One — Preheat and mix. Preheat your oven to low broil and position the rack in the upper-middle. In a bowl, combine drained tuna, rinsed white beans, mayonnaise, Dijon mustard, black pepper, dried oregano, diced olives, roasted red peppers, and finely chopped red onion. Stir until the mixture is evenly combined and creamy.

Step Two — Toast bread and assemble. Slice your chosen bread and, if using, thinly slice a tomato. Place the bread on a baking sheet and toast under the broiler for one to two minutes per side, until lightly golden. Lay a tomato slice on each toasted bread piece, then spread a generous layer of the tuna mixture on top.

Step Three — Add cheese and broil. Top each open-face sandwich with a slice of Swiss or cheddar cheese. Return the assembled melts to the broiler and heat for two to three minutes, watching carefully, until the cheese is bubbly and lightly golden. Remove, let cool briefly, garnish with chopped cilantro, and serve.

Leftovers: store in an airtight container in the refrigerator for up to three days. Reheat briefly under a broiler or in an oven to refresh the topping and melt the cheese.

Tuna Melt Tips

Select the right bread:

• Use a sturdy loaf such as sourdough, rye, or a dense whole-grain bread so the slice supports the toppings and stays crisp after broiling. A slightly thicker slice helps prevent sogginess at the center.

Spice it up:

• Add a pinch of smoked paprika, a dash of garlic powder, or a bit of lemon zest to brighten the filling and add complexity.

Watch the broiler:

• Keep a close eye while broiling; cheese can go from perfectly melted to overdone in seconds. Stay nearby and check frequently for the best results.

Recipe Pairings

These open-face tuna melts pair well with crisp sides. Try oven-baked fries, a lemon kale Caesar, a crisp kale coleslaw, or zucchini fries for a balanced plate. A simple green salad or crunchy pickles also complement the rich tuna and cheese flavors.

Other Tuna-Loaded Recipes To Enjoy

Side Dishes

Tuna Potato Salad

Dinner

Tuna Pesto Pasta

Dinner

Sushi Bake

Lunch

Spicy Tuna Salad

If you tried this recipe and enjoyed it, I’d love to hear about it—comments and photos are always welcome. Thank you for reading and happy cooking.