Cheesy Tuna Melt Toasts are the ultimate quick comfort food and an easy appetizer for any occasion. Crispy slices of bread are topped with a creamy, savory tuna mixture and baked until hot, bubbly, and golden. They are simple to assemble, budget-friendly, and perfect for using pantry staples you likely already have on hand. Whether you need a fast weeknight dinner, a snack for game night, or a platter of warm bites for guests, these tuna melt toasts are always a crowd-pleaser.
Ingredients
For the tuna topping
- 2 cans tuna in water or oil, drained well
- ½ cup mayonnaise
- 1 tablespoon Dijon or yellow mustard
- 1 small onion, very finely chopped
- 1 small celery stalk, finely diced (optional for crunch)
- ½ cup shredded cheddar cheese
- ½ cup shredded mozzarella or Monterey Jack cheese
- 2 tablespoons sweet pickle relish or finely chopped pickles
- 1 teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon paprika
- Salt and black pepper, to taste
- 1–2 tablespoons chopped fresh parsley (optional)
For the toasts
- 12–16 slices of crusty bread (baguette, Italian bread, or sourdough)
- 2–3 tablespoons softened butter or olive oil for brushing
Instructions
1. Prepare the bread
Preheat your oven to 400°F (200°C). Line a baking sheet with foil or parchment paper for easy cleanup. Arrange the slices of bread in a single layer on the tray. Lightly brush each slice with softened butter or a little olive oil. This helps the bread crisp in the oven and adds a rich, toasty flavor.
Place the tray in the preheated oven for about 5–7 minutes, or until the bread just starts to turn lightly golden around the edges. Pre-toasting the bread keeps it from becoming soggy once the tuna mixture is added. Remove from the oven and set aside while you prepare the topping.
2. Mix the tuna filling
In a medium mixing bowl, add the drained tuna and break it up with a fork until there are no large chunks. Stir in the mayonnaise and mustard until the tuna is coated and creamy. Add the chopped onion, celery, pickle relish, garlic powder, onion powder, paprika, and a pinch of salt and pepper.
Fold in the shredded cheddar and mozzarella cheeses until everything is evenly combined. The mixture should be thick enough to mound on top of the bread without running off the sides. Taste and adjust the seasoning, adding more salt, pepper, or paprika if needed. If you like a fresher flavor, stir in chopped parsley.
3. Assemble the tuna melt toasts
Spoon a generous amount of the tuna mixture onto each slice of pre-toasted bread, spreading it almost to the edges. Aim for an even layer that is about ½ inch thick so it bakes through and browns nicely. If you have extra cheese, you can sprinkle a little on top of each toast for an extra gooey, golden finish.
4. Bake until bubbly and golden
Return the tray to the oven and bake for 10–12 minutes, or until the tuna topping is hot and the cheese is melted and bubbling. For a deeper golden color, switch the oven to broil for the last 1–2 minutes, watching closely to prevent burning.
Once the tops are beautifully browned and the edges of the bread are crisp, remove the tray from the oven. Let the toasts cool slightly before serving, as the topping will be very hot.
Tips for Best Results
- Drain the tuna well: Excess liquid can make the topping runny and the bread soggy.
- Use sturdy bread: A firmer loaf such as baguette or sourdough holds up better under the creamy topping and keeps a nice crunch.
- Adjust creaminess: If you prefer a richer mixture, add an extra spoonful of mayonnaise. For a lighter version, replace part of the mayo with plain Greek yogurt.
- Make ahead: You can mix the tuna topping several hours in advance and keep it covered in the refrigerator. Spread it on the bread and bake just before serving.
Flavor Variations
These Cheesy Tuna Melt Toasts are easy to customize:
- Spicy Tuna Toasts: Add a pinch of red pepper flakes, cayenne, or a spoonful of hot sauce to the tuna mixture.
- Herb Lover’s Version: Mix in chopped dill, chives, or basil for a brighter flavor.
- Extra Veggie: Fold in finely diced bell pepper or grated carrot for color and texture.
- Different Cheese: Swap cheddar for pepper jack, Swiss, or gouda for a new twist.
Serving Suggestions
Serve these toasts hot from the oven as an appetizer, game-day snack, or light main dish. They pair beautifully with a crisp green salad, a bowl of soup, or simple sliced tomatoes and cucumbers. For parties, cut each toast in half or thirds to make bite-size pieces that guests can grab easily from a platter.
Storage and Reheating
Leftover Cheesy Tuna Melt Toasts can be stored in an airtight container in the refrigerator for up to 2 days. Reheat them in a hot oven or air fryer for a few minutes until the bread is crisp and the topping is heated through. Avoid microwaving, as it can make the bread chewy.
With their crunchy base, creamy tuna topping, and melted cheese, these Cheesy Tuna Melt Toasts are a warm, satisfying option that turns simple ingredients into something special.