Everyone in St Louis has a favorite restaurant on 'the Hill' .. the Italian Hill.
I personally love Cunetto's
http://www.cunetto.com/ while others think it touristy.
I cannot recall the others I have been taken to on the Hill nor how to return .. other than this one!
Turtle Soup is also a specialty of many of the restaurants in the area . with sherry .. worth a try!
I have been soooo hungry for Italian at times .. I have gone to STL for a weekend pasta fix.
Be warned the popular restaurants on weekends are VERY busy .. most do not take reservations. Cunetto's will line up 30 minutes before opening on Satuday night to get a table... I call it my 'late pasta lunch'!
ENJOY!