Preheat the oven to 325 degrees. In a large skillet, heat oil over medium heat, swirling pan to coat. Add ginger; cook until fragrant, about 30 seconds. Add mushrooms and saute for 1 minute.
Add the carrots, onion, celery; season with salt and pepper. Stir-fry until vegetables are tender, about 5 minutes. Stir in the rice, orange juice, and cranberries. Toss to mix well.
Pour the rice mixture into a 9-by-13-inch baking dish. Cover loosely with foil; bake until heated through and liquid has evaporated, about 30 minutes.