At 9 months babies can try eating mostly everything we do except:
* Egg whites (until at least 1 year)
* Cows milk (until at least 1 year)
* foods linked to alergic reactions in your family
* heavy spices, salt, pepper etc
* Adult breakfast cereals (until at least 1 year) but you probably don't want to give a lot of them them to your child anyway because most of them contain CRAZY amounts of sugar.
* Grains and seeds (until at least 2 years)
This is according to the NZ ministry of Health guidelines, so may be different subject to where you live.