4 cups frozen hash brown potatoes, thawed
1 (10 3/4 ounce) can Campbell's® Condensed Cream of Celery Soup
1 cup shredded Cheddar cheese
1 cup sour cream
1 1/3 cups FRENCH'S® French Fried Onions
Heat oven to 400°F. In large bowl, combine potatoes, soup, 1/2 cup cheese, sour cream, 2/3 cup French Fried Onions. Spread mixture into 8 x 12-inch baking dish.
Split frankfurter lengthwise almost into halves. Arrange frankfurters, slit-side up, along center of casserole.
Bake, covered, for 30 minutes or until heated through. Fill frankfurters with remaining cheese and onions; bake, uncovered, 1 to 3 minutes or until onions are golden brown.