Preheat oven to 350°. Place milk in a shallow bowl. In another shallow bowl, combine the baking mix, pecans and seasonings. Dip chicken pieces in milk, then coat generously with pecan mixture., Place in a lightly greased 13x9-in. baking dish. Drizzle with butter. Bake, uncovered, until chicken is golden brown and crispy and juices run clear, about 1 hour.