Cook the high protein elbow pasta in salted water until just al dente. Drain and set aside.
In a large mixing bowl, add: shredded rotisserie chicken, Greek yogurt, cream cheese, half & half, ½ cup parmesan, garlic powder, onion powder, salt, pepper. Stir until fully combined and thick.
Fold the cooked pasta into the mixture. Crack in the egg and mix thoroughly.
Spread mixture evenly into a greased 13x9 baking dish.
Bake at 375°F (190°C) for 25–30 minutes, until hot and bubbling around the edges.
Remove from oven and sprinkle: remaining parmesan, and a thin, even layer of sugar
Place under broiler for 1–3 minutes until golden and slightly crisp. Let sit for 5–10 minutes before serving.
This makes 4 generous servings. Enjoy!