Tuna crostini is a tasty and easy-to-make appetizer that is perfect for entertaining. In this blog post, we’ll share our favorite tuna crostini recipe and some tips to help you make the perfect appetizer.


  • 1 baguette, sliced into 1/2-inch thick rounds
  • 1 can of tuna, drained and flaked
  • 1/4 cup mayonnaise
  • 1/4 cup chopped red onion
  • 2 tbsp capers
  • 2 tbsp chopped fresh parsley
  • 1 tbsp lemon juice
  • Salt and pepper to taste


  1. Preheat the oven to 350°F.

  2. Arrange the baguette slices on a baking sheet and brush with olive oil.

  3. Bake the baguette slices in the oven until golden brown and crisp, about 5-7 minutes.

  4. In a medium bowl, mix together the tuna, mayonnaise, red onion, capers, parsley, and lemon juice.

  5. Season with salt and pepper to taste.

  6. Top each baguette slice with a spoonful of the tuna mixture.

  7. Garnish with additional parsley and serve.


  1. Use high-quality tuna for the best flavor.

  2. For a lighter version, you can use Greek yogurt instead of mayonnaise.

  3. Add a kick of spice by adding a pinch of cayenne pepper to the tuna mixture.

  4. Experiment with different toppings, such as sliced cherry tomatoes or sliced olives.

  5. Serve the crostini immediately after assembling to prevent the bread from becoming soggy.