Bolognese is known in Italy as ragù alla bolognese. It is a meat-based sauce and is classically used to dress tagliatelle al ragù and to prepare lasagne alla bolognese. It is usually made with onion, celery, carrot, beef and pork, white wine, milk, and a small amount of tomato paste or tomatoes. The dish is gently simmered to produce a thick sauce. Meat sauce on the other hand is typically a tomato-based sauce and is more common outside of Italy. Ground beef or other ground meats such as ground turkey are often added.