1 (32-ounce) package frozen hash brown potatoes |
1 (10 3/4-ounce) can fat-free cream of chicken soup |
1 (8-ounce) container light sour cream |
1 small onion, chopped |
1 (5-ounce) can low-fat evaporated milk |
1/4 cup light butter or margarine, melted |
1 teaspoon dried rosemary (optional) |
1/2 teaspoon salt |
1/4 teaspoon pepper |
vegetable cooking spray |
1 cup (4 ounces) shredded reduced-fat cheddar cheese |