Ingredients Meat & Poultry Chicken Chicken Breast Recipes Chicken Tonnato 2.8 (21) 1 Review By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on May 16, 2017 Print Share Share Tweet Pin Email Photo: GENTL & HYERS Servings: 4 "Tonno" is Italian for tuna, and the name of this dish refers to the primary ingredient in the sauce. The sauce can also be served chilled over room-temperature chicken. Ingredients 1 tablespoon olive oil Two 12-ounce chicken breasts, boned and halved For the Garnish ½ cup mayonnaise 1 tablespoon freshly squeezed lemon juice 4 cups arugula leaves (1 large bunch) For the Sauce 1 small carrot, peeled and finely chopped 1 rib celery, strings removed and finely chopped 1 small onion, peeled and finely chopped 1 medium clove garlic, finely chopped 1 cup dry white wine 3 fresh sage leaves 1 sprig rosemary ½ tablespoon capers, drained One 6-ounce can light tuna, drained of oil For the Seasoning Salt and freshly ground pepper, to taste Directions Heat oven to 425 degrees. Heat oil in ovenproof skillet over high heat. Season chicken with salt and pepper. Cook in skillet, skin-side down, until brown, 3 to 4 minutes. Flip; cook 1 minute. Remove chicken; add vegetables. Reduce heat to medium low; cook 5 to 6 minutes. Add wine, and bring to boil. Stir in the herbs, capers, and tuna; add the chicken. Transfer skillet to oven, and roast until chicken is cooked through, about 15 minutes. Remove chicken; transfer to cutting board. Discard herbs. Let tuna cool; puree until smooth. Add mayonnaise and juice. Slice chicken; arrange over arugula. Top with chilled sauce Print