B.G.
Baby food is table food, just mashed up. Some babies (my younger son) eat very little baby food. He pretty much went straight to table food, as he showed not interested whatsoever in being spoon fed. The food on my plate and his big brother's plate, on the other hand, were increadibly intersting to him :-)
How do you know he's full? He'll stop eating. Seriously, kids do that. It's not always easy, but as a parent we need to trust that kids will eat when they're hungry and stop eating when they are full. If you offer him foods and he refuses, don't push it. He's probably full. If he starts to get really cranky, try offering him something to drink or something to eat. Sometimes kids will get that way.
Just give it a shot and try not to worry. He'll let you know if it's not what he wants.