Provençal Tuna Burger with Roasted Garlic–Tomato Aioli

This flavorful tuna burger is fully inspired by the niçoise salad from the Provence region of France. I do make an exception to my “no-add-ins” rule when forming the patties for fish burgers because the fish is generally so lean that it benefits from some additional moisture. Many of the salad’s key components, such as briny and salty capers, niçoise olives, and anchovies (here in paste form), are mixed into the tuna burger itself along with sharp Dijon mustard, sweet shallots, and fresh basil. These ingredients also act as a binder, holding the burger together as it cooks. Roasting the garlic and tomato gives a deep yet mellow sweetness, while fresh lemon juice and zest supply a bright note to the full-flavored aioli. It’s an elegant take on a burger.