01 -
Preheat oven to 300ºF. Lightly spray a 9x13-inch baking dish with cooking spray.
02 -
Cook linguine according to package directions. Drain thoroughly.
03 -
In a large bowl, combine chopped chicken, cream of chicken soup, cream of mushroom soup, sour cream, melted butter, chicken broth, salt, pepper, and garlic powder. Stir in the cooked pasta until evenly coated.
04 -
Pour the mixture into the prepared baking dish. Top evenly with Parmesan cheese, mozzarella cheese, and sprinkle with dried parsley. Cover with aluminum foil.
05 -
Bake covered for 45 minutes. Remove foil and bake an additional 10 to 15 minutes, until bubbly and cheese is melted and lightly golden.