Description
A quick and flavorful Tuna Salad Croissant Sandwich combining flaky tuna, crunchy celery, fresh herbs, and tangy capers, all layered with crisp lettuce, ripe tomatoes, and crunchy sprouts inside buttery croissants. Perfect for an easy and satisfying lunch or light dinner in just 15 minutes.
Ingredients
Tuna Salad
- 2 cans tuna packed in olive oil (drained)
- ½ cup celery (diced, about 1-2 celery stalks)
- 1 small shallot (minced)
- 2 tbsp fresh dill (chopped)
- 2 tsp capers
- 1 tsp lemon zest
- 1 tbsp freshly squeezed lemon juice
- 1 tsp dijon mustard (or to taste)
- ½ cup kewpie mayo (or regular mayo)
- Kosher salt (to taste)
- Freshly ground black pepper (to taste)
Sandwich Assembly
- 4-8 butter or romaine lettuce leaves
- 4 croissants (sliced in half lengthwise)
- 1-2 tomatoes (thinly sliced)
- 1 cup sprouts (alfalfa, broccoli, radish, or a mix)
- Cornichons (optional, for garnish)
Instructions
- Make tuna salad: Add the drained tuna to a large mixing bowl and use a fork to break up the fish into small flaky pieces. Add the diced celery, minced shallot, chopped dill, capers, lemon zest, lemon juice, dijon mustard, and mayonnaise. Gently fold the ingredients together until well combined. Season with kosher salt and freshly ground black pepper to taste, adjusting flavors as needed.
- Assemble sandwich: Lay the croissant bottoms cut side up on a serving plate. Place 1-2 slices of lettuce and then layered thin slices of tomato on each croissant base. Spoon a generous scoop of the prepared tuna salad evenly on top of the tomatoes, spreading it out. Sprinkle a handful of sprouts over the tuna salad. Place the croissant tops on each sandwich and gently press down to secure the filling. If desired, garnish with a couple of cornichons on toothpicks placed through the sandwich tops to hold them in place. Serve immediately and enjoy!
Notes
- For best flavor, use quality canned tuna packed in olive oil.
- Kewpie mayo adds a subtle sweetness and creaminess but regular mayo works well too.
- Adjust dijon mustard and lemon juice according to your preferred tanginess.
- Feel free to swap croissants for your favorite bread if desired.
- Sprouts add a nice crunch and fresh flavor; mix varieties for added texture.
- Cornichons add a tangy bite and help secure sandwiches when serving.
- Keep sandwiches refrigerated if not serving immediately, but assemble just before eating for best texture.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Sandwich
- Method: No-Cook
- Cuisine: American
