INGREDIENTS
1
package Hash brown potatoes, frozen country-style
1
Onion, chopped (about 1/4 cup), small
2 cans
Campbell's (10 1/2 ounces each) campbell's condensed cream of potato soup, Condensed
1 cup
Cheddar cheese
1/2 cup
Parmesan cheese, grated
1
container Sour cream