"This delightfully cheesy and richly flavored casserole might be the ultimate party dish. It’s got all the comfort of a classic mashed potato casserole but with molto pizzazz. Favorite Italian ingredients, like Parmesan, garlic and rosemary punch up the flavor and the look. This casserole gets dressed up for the party with a buttery topping of toasted bread crumbs, chopped tomatoes and fresh basil. The pops of red and green make it perfect for a holiday table! Whether you’re traveling to the party or hosting, th..."