Cook the rice blend according to package instructions; set aside.
Preheat oven to 425°F. Roast chicken with 2 tbsp olive oil, ¼ tsp salt and pepper until internal temp reaches 165°F (about 20 min). Rest, then chop into chunks.
Peel and dice butternut squash. Sauté squash and onion in remaining oil with salt and pepper until tender, about 6-8 min.
Mix chicken, squash, thyme, cranberries, ¼ cup Parmesan, and rice. Transfer to a sprayed baking dish.
Bake at 350°F for 15 min, then top with nuts and remaining Parmesan. Bake another 8-10 min until cheese melts and nuts are golden. Garnish with thyme before serving.