Wow party guests and your own tastebuds with bite-sized Tuna Pesto Crostini! This appetizer, inspired by a favorite Italian sandwich, is irresistibly delicious. Toast slices of baguette, spread with spinach‑pistachio pesto, add a slice of fresh mozzarella, top with flaked tuna packed in olive oil, and finish with a drizzle of balsamic reduction. Serve immediately for a perfect appetizer or a light meal.
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Eleven summers ago I spent a season in Tuscany studying art. Those weeks remain some of my most vivid memories: early mornings, cappuccinos with roommates, wandering fruit stands, and that simple sandwich I ate again and again. The combination of tuna, bright pesto and fresh mozzarella on crusty bread quickly became a favorite. It turns out the olive oil in the tuna made all the difference — rich, silky and full of flavor.
I decided to honor that memory by turning the sandwich into a bite-sized crostini. These small toasts capture the same balance of textures and flavors — crunchy bread, herbaceous pesto, creamy mozzarella, and tender tuna — but in a form that’s ideal for entertaining. They’re quick to assemble and impressive to serve.
On weekdays in Cortona I would walk back up the hill with my sandwich, sit overlooking the valley, and savor each bite while sketching or planning the day’s work. That simple ritual — food paired with a moment of calm — is exactly what these crostini bring to any table. They’re great as an appetizer, a casual lunch, or part of a mezze spread.
Tuna Pesto Crostini Essentials
- Toaster oven or oven for toasting bread.
- Serrated knife and cutting board.
- Small spatula or spoon for spreading pesto.
Get the look
- Simple white platter or wooden board to arrange the crostini neatly.
- Small squeeze bottle or spoon to drizzle the balsamic reduction.
Ready to make crostini? The recipe is straightforward and forgiving. Use a high-quality canned tuna packed in olive oil for the best texture and flavor. If you prefer, you can make your own spinach‑pistachio pesto or choose a high-quality store-bought pesto. Fresh mozzarella slices add creaminess and a pleasing contrast to the savory tuna.
Tuna Pesto Crostini
Servings: 10
Bite-sized toasts topped with spinach‑pistachio pesto, fresh mozzarella and tuna in olive oil, finished with a balsamic reduction. Perfect for parties or a light lunch.
Equipment
- Serrated knife
- Wooden cutting board
- Toaster oven or oven
Ingredients
- 1 loaf crusty bread (baguette or ciabatta work well)
- 3/4 cup spinach‑pistachio pesto (homemade or good quality store‑bought)
- 1 can high‑quality canned tuna packed in olive oil, drained and flaked
- 1 ball fresh mozzarella, sliced
- Balsamic reduction, for drizzling
Instructions
- Slice the bread into 1/2‑inch (about 1 cm) thick slices. Toast in a toaster oven or the oven until golden and crisp.
- Spread each toasted slice with a thin layer of spinach‑pistachio pesto.
- Top the pesto with a slice of fresh mozzarella.
- Flake the tuna and distribute it evenly over the mozzarella.
- Arrange the crostini on a platter and finish with a light drizzle of balsamic reduction. Serve immediately.
Notes
If you prefer not to make your own pesto, choose a jarred pesto from a reputable brand for the best flavor. Using tuna packed in olive oil gives a richer, silkier result than water‑packed tuna.
Nutrition
Approximate per serving: 305 kcal; Carbohydrates 39 g; Protein 17 g; Fat 9 g; Sodium 504 mg. Values will vary based on brands and portion sizes.
Did you study abroad, too?
If you have a favorite food memory from travel, try recreating it in a simple, shareable way like these crostini. Food has a unique power to bring back places, people and moments — and sometimes the best recipes are the ones that transport you.
Would you like a crostini?
Serve these at your next gathering or enjoy them as an easy, flavorful lunch. They come together quickly, look beautiful on a platter, and are a delightful way to celebrate summer flavors with minimal fuss.