Place 1 in. of water in a saucepan; add rutabaga. Bring to a boil. Reduce heat; cover and simmer for 7-9 minutes or until crisp-tender. Drain. In a small bowl, combine the flour, brown sugar, salt, thyme, cinnamon and pepper.
Place half of the rutabaga in a 1-qt. baking dish coated with cooking spray; brush with 1-1/2 teaspoons butter. Sprinkle with half of the flour mixture; top with half of the apple slices. Repeat layers. Pour apple juice over top.
Toss bread crumbs and remaining butter; sprinkle over apple. Top with walnuts. Cover and bake at 350° for 30-35 minutes or until rutabaga and apple are tender.