Its been fun watching the different theories regarding the meaning of
  "Tossed Salads and Scrambled Eggs" pop up over the last few years.  I don't
  think "Hamlet" has been as closely scrutinized or more divergently
  interpreted.

  Here is what I (and the songwriters and other two creators of the show)
  thought it meant when we decided on it.

    Hey baby I hear the blues a'callin'

      play on words:  He's got the blues and referencing that he takes phone
      calls

    Tossed Salads and Scrambled Eggs

      mixed up people who call in

    And maybe I seem a bit confused
    Well, maybe, but I got you pegged

      the core of Frasier's character:  He is a nutcase himself much of the
      time, but can analyze the problems of others

    But I don't know what to do with those
    Tossed Salads and Scrambled Eggs

      except these damn callers

    They're callin' again

      they're calling again

  Subject: Another analysis
  From: Bill Jennings

  Here's my Personal Theory (tm) as to the meaning behind the _Frasier_ theme.

  What do tossed salad and scrambled eggs have in common?  They are both
  things that, once made, can't be unmade.  As the Gershwin song goes, "You
  Can't Unscramble Scrambled Eggs".

  While the phrase can be applied to Frasier's callers, I think it has more to
  do with his family and friends.  Frasier has put himself into a situation
  that he can't get out of.  Sort of like tossed salad and scrambled eggs.