TUNA NICOISE SANDWICHES

Tuna Nicoise Sandwiches image

Provided by Martha Stewart

Time 20m

Number Of Ingredients 11

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1/2 white onion, thinly sliced
1/2 red onion, thinly sliced
1/4 cup plus 4 teaspoons extra-virgin olive oil
2 tablespoons red wine vinegar
Coarse salt and freshly ground pepper
2 jars (7 ounces each) best-quality tuna packed in olive oil
1 tablespoon fresh lemon juice, plus lemon wedges, for serving
4 small ciabatta rolls, split horizontally
2 heads Bibb lettuce, leaves separated
1/2 cup nicoise olives, pitted
4 hard-boiled eggs, peeled and thinly sliced

Steps:

Put onions, 1/4 cup oil, vinegar, and 1/4 teaspoon salt in a medium bowl; season with pepper. Toss to combine. Let stand 10 minutes.
Add tuna and its oil to onion mixture. Add lemon juice and 1/4 teaspoon salt; season with pepper. Gently toss to combine.
Cover bottom halves of rolls with lettuce. Top with olives, eggs, and tuna mixture, dividing evenly. Drizzle each with 1 teaspoon olive oil. Cover with top halves of rolls. Serve with lemon wedges.