Add stock and bring to boil. Add escarole, reduce heat, cover, and simmer for 10 minutes. Add meatballs and simmer another 5 minutes. Meanwhile, combine remaining 2 eggs and remaining cheeses in small bowl and stir with a fork to blend gently. Slow pour egg mixture into hot soup, stirring constantly.
Seth MacFarlane voices four of the show's main characters: Peter Griffin, Brian Griffin, Stewie Griffin and Glenn Quagmire. MacFarlane chose to voice these characters himself, believing it would be easier to portray the voices he had already envisioned than for someone else to attempt it.
Scott Menville voiced Shaggy in Shaggy & Scooby-Doo Get a Clue!. As of 2010, Matthew Lillard, who also played Shaggy in the 2002 and 2004 live-action films, took over the voice of Shaggy. Lillard also played Shaggy in Robot Chicken and MAD. Nick Palatas played Shaggy in the 2009 and 2010 live-action films.