Preheat oven to 400 degrees. Grease a 9x13 inch baking dish.
In prepared dish, arrange bread slices in a single layer with sides touching and sprinkle raisins and pecans over bread.
In a medium bowl, whisk eggs, half and half, orange juice, cinnamon, salt and nutmeg together and pour mixture over bread. Cover and refrigerate for 8 hours or overnight.
Bake, uncovered for 30-35 minutes or until toast is light brown and a tester inserted in center of mixture comes out clean. Just before serving, dust with confectioners' sugar or pour Orange syrup over toast. Makes 8 servings. Enjoy!