Made this tonight and it was the perfect cozy comfort dish. I substituted ground chicken for the sausage and added sauteed mushrooms for extra flavor and also added way more seasoning otherwise it would be very bland . It has such a creamy, savory flavor and topped with some Parmesan, mozzarella and ricotta it was so rich. The mushrooms give it an additional layer of flavor and serve with some garlic bread and salad for an excellent, quick, easy weekday meal!