Potato casserole

1 1/2 cups fat-free sour cream
1 1/4 cups (5 ounces) finely shredded reduced-fat sharp cheddar cheese
1/2 cup fat-free, less-sodium chicken broth
2 tablespoons minced fresh onion
5 teaspoons butter, melted
1/2 teaspoon freshly ground black pepper
1/4 teaspoon salt
1/8 teaspoon ground red pepper
1 (30-ounce) package frozen hash browns, thawed (such as Ore-Ida)
1 (10.75-ounce) can reduced-fat cream of chicken soup (such as Campbell's Healthy Request)
Cooking spray
1 cup coarsely crushed cornflakes


Preheat oven to 350°.
Combine first 10 ingredients in a large bowl; spread evenly into a 13 x 9-inch baking dish coated with cooking spray.
Sprinkle cornflakes over potato mixture.
Bake at 350° for 1 hour or until bubbly.