Heat the oven to 190°C (375°F). Lightly grease a 9x13 inch casserole dish.
Cook the penne in a large pot of salted water until 1 minute short of the packet time. Drain and set aside.
Heat the olive oil in a large skillet over medium heat. Cook the onion for 4 minutes until soft, then add the garlic, thyme and sage and cook for 1 more minute.
Add the shredded turkey and the gravy to the skillet and stir until the turkey is warmed through, about 3 minutes.
In a large mixing bowl, combine the drained penne, the turkey mixture, the Greek yogurt, 1 cup of the mozzarella, the Parmesan, salt and pepper. Toss until everything is evenly coated.
Tip the mixture into the prepared casserole dish and spread it out evenly. Sprinkle the remaining 1/2 cup of mozzarella over the top.
Bake for 20–25 minutes, until the cheese is golden and bubbling at the edges. Rest for 5 minutes, sprinkle with fresh parsley, and serve.
Notes
Pull the penne 1 minute early — it finishes in the oven. Rest 5 minutes before serving so it slices cleanly. Keeps 3 days refrigerated.
Keyword dinner, high protein, leftover turkey, pasta bake, thanksgiving leftovers