Name: Cheesy Mashed Potatoes Casserole
Ingredients: 6 cups prepared mashed potatoes OR 6 large russet potatoes, peeled and chopped; 8 ounces cream cheese, softened (reduced fat is okay); 1 1/2 cup shredded cheddar or monterey jack cheese (divided); 1/2 cup sour cream (reduced fat is okay); 1 teaspoon onion powder; 1 teaspoon garlic powder (omit if using prepared garlic mashed potatoes); 2 teaspoons salt; 1/2 teaspoon black pepper