Food & Cooking Recipes Ingredients Seafood Recipes Mackerel with Roasted Fennel, Meyer Lemon, and Olives Be the first to rate & review! By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Servings: 4 A whole fish is cooked and topped with this savory Mediterranean Meyer lemon-olive sauce over roasted fennel. Ingredients 1 head fennel 2 tablespoons extra-virgin olive oil Kosher salt and freshly ground black pepper 1 Meyer lemon ¼ cup coarsely chopped pitted Kalamata olives 1 whole mackerel (2 to 3 lbs., head off) Directions Preheat oven to 400 degrees. Slice fennel into 1/2-inch wedges (reserve fronds), arrange on a rimmed baking sheet, and drizzle with 1 tablespoon olive oil. Season with salt and pepper and roast, flipping fennel halfway through, until caramelized and golden, about 25 minutes. Let cool. Cut into 1/2-inch pieces. Transfer to a medium bowl. Peel zest from lemon, avoiding white pith. Thinly slice zest on the bias. In a medium bowl combine zest with fennel, olives, 2 tablespoons fresh lemon juice, and 1 tablespoon olive oil. Set aside. Butterfly mackerel by cutting lengthwise along belly of fish toward tail, then slicing along backbone (but not all the way through the fish). Gently open fish and arrange skin-side down on a parchment-lined baking sheet; flatten slightly. Drizzle with olive oil and season with salt and pepper. Bake until cooked through and flaky, 10 to 12 minutes. Transfer to a serving platter and top with fennel mixture. Garnish with chopped fennel fronds. Rate it Print