4 boneless skinless chicken breasts 1 cup Caesar salad dressing 1/2 cup sour cream 1 1/2 cups Parmesan cheese 1/2 teaspoon garlic powder Fresh parsley, chopped, for serving Kosher salt and freshly ground black pepper, to taste Preheat oven to 375°F and grease a baking dish with nonstick spray. Pound chicken breasts to an even…