Home / Restaurants / 5 Restaurant Chains With the Best Fettuccine Alfredo Dinners, According to Diners Image by ELLE RITTER from Pixabay/Shutterstock Evidence-Based From silky sauces to fresh pasta, these chains serve standout Alfredo. Fettuccine Alfredo is one of the most popular Italian dishes in America. The rich, creamy sauce made with butter, cream, and Parmesan cheese, paired with the carby flat noodle, has the perfect texture and consistency for many diners.