Cheesy Garlic Potatoes Recipe

• 1 can (14 ounce) cream of roasted garlic soup
• 1 c. Low fat lowfat sour cream
• 1/2 lb Shredded mozzarella cheese
• 1 med Onion, finely minced
• 2 lb Frzn hash brown potatoes
• 2 Tbsp. Unsalted butter, cut into pcs

Directions