J.G.
At four months we were "taste testing" already so by the time 6 months rolled around my daughter was eager for solids. At the 5 month mark we were giving her a fruit during the day and mushed up anything at dinner. (She was wanting to eat our food by then). At 6 months we started giving her Yo-Baby in the morning too. Now at 8 months she eats 3 meals a day with snacks in between. In her case she's a skinny minny so we let her eat as much as she wants and she can eat A LOT! My philosophy was, if she wants to eat it and its safe and healthy let her. Better that she wants to eat versus being picky where we have to force food or bribe her to eat.
Good luck!
Jen
http://www.mommysjoy.com