My few of my favorites...

Filet Mignon or Prime Rib:
Sonoma Cellar at Sunset Station
All American at the Rio
Traditions at The Las Vegas Club
Arizona Charlies (Boulder or Decataur)

Italian Food:
Ristorante Italiano at the Riviera
Capezzoli's on Maryland Pkwy.
Annabella's on Sandhill, off Desert Inn Road

Coffee shop:
Carson Street Cafe at the Golden Nugget

And of course, if you like shrimp, don't miss the 99c shrimp at the Golden Gate.