Step 1

Preheat the oven to 350 degrees F (175 degrees C).

Step 2

Stir together cream of chicken soup, cottage cheese, sour cream, cream cheese, Creole seasoning, onion powder, and 1/2 teaspoon of the garlic powder in a medium bowl until well blended and smooth. Fold in chicken, chopped onion, and parsley until evenly coated.

Step 3

Stir together crackers, melted butter, and remaining 1/2 teaspoon garlic powder in a medium bowl.

Step 4

Spoon chicken mixture evenly into an 11x7-inch or 9-inch square baking dish. Sprinkle evenly with mozzarella then cracker mixture.

Step 5

Place on a foil-lined baking sheet and bake in the preheated oven until crackers are golden brown and edges are bubbly, about 40 minutes. Cool for 10 minutes before serving; garnish with scallions if desired.