Tuna Niçoise Burgers are a delicious twist on the classic Niçoise salad. These burgers are made with fresh tuna, mixed with capers, olives, and herbs, then grilled to perfection. Topped with a tangy lemon-dijon mayo and served on a toasted bun with lettuce, tomato, and red onion, these burgers are a flavorful and healthy alternative to traditional beef burgers. They are perfect for a summer cookout or a quick and easy weeknight dinner.