Chicken Salad with Lemon-Yogurt Dressing

Preheat oven to 425 degrees. Rub tarragon, 1 teaspoon lemon zest, 3/4 teaspoon salt, and 1/4 teaspoon pepper under chicken skin. Place on a rimmed baking sheet; roast until cooked through, about 30 minutes.

In a large bowl, whisk together yogurt, 2 teaspoons olive oil, remaining 1 teaspoon lemon zest, 1 teaspoon fresh lemon juice, and remaining 1/2 teaspoon salt.

Remove and discard skin and bones from chicken; thinly slice meat lengthwise. Add to bowl along with tomatoes and scallions; toss to combine.

In a separate bowl, whisk together remaining 2 teaspoons lemon juice and 1 tablespoon olive oil. Add mesclun; toss to coat. Divide among plates; spoon chicken mixture on top.