Lightly butter a 9x13 baking dish (or use cooking spray); set aside.
In a large bowl, combine the cream cheese, cottage cheese, sour cream, cream soup, and seasonings.
1 8 ounce pkg cream cheese, 1 cup cottage cheese, ½ cup sour cream, 1 10.75 ounce can of cream soup, or 2 cups homemade Cream Soup Substitute, ½ teaspoon garlic powder, ½ teaspoon onion powder
Mix in the cooked chicken.
5 cups leftover chicken
Spoon the chicken mixture into the prepared baking dish.
Combine crushed crackers and melted butter.
12 buttery crackers, 4 tablespoons butter
Sprinkle the buttery ritz cracker topping on top of the casserole evenly.
Bake for 35-40 minutes until hot and bubbly.
Notes
StorageTo Store: Store your cooked chicken casserole in an airtight container in the fridge for 4-5 days.To Reheat: Microwave individual portions in 30-second intervals until warmed through.To Freeze: Freeze the chicken filling mixture in a freezer bag for up to 3 months. Do not include the cracker topping. (Be sure to label the bag!)To Thaw: Allow the casserole filling to thaw in the fridge overnight