Hello..
I am not sure what is the right way to go but with my DD I did food then bottle,but with my Ds who is nearly 6months old I do bottle then food.
He has been on Cereal in the morning for about one month now and we started lunch time one week ago.
I think they say do milk then cereal,but I personally think every child is different and what is by the book doesn't work for every child.
I have done both my children different and they are both fine.
I personally believe readall the info then work out what is best for your child.thats what I do with my DS now,it took me 4months to work him out,but now he goes great every day without hardly any problems.
This probably doesn't help you,but i have read both ways too.