Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.

Cook the spaghetti according to package directions, drain, and set aside.

In a large bowl, combine the cream of chicken soup, sour cream, cream cheese, chicken broth, garlic powder, onion powder, salt, and pepper. Stir until smooth.

Add the cooked spaghetti and shredded chicken to the mixture and stir until well combined.

Transfer the mixture to the prepared baking dish, spreading it evenly.

Sprinkle the cheddar, mozzarella, and Parmesan cheese evenly over the top.

Bake for 25-30 minutes, until the cheese is melted and bubbly.

Let it cool for a few minutes before serving.