funny thing about baby food.. it is not a big deal and it just doesnt matter.. your baby would be fine if he never had any of the baby food..
baby food is just pratce for eating later. to get teh baby used to tastes and textures..
For the first year.. all of athe baby's nutrition comes from breastmilk or formula.. there just isnt much nutrition in a jar of baby food.
so.. I waited about a month to start fruits and veggies.. it doesnt matter what order you go in frutis first veggies first.. I kept my kids on 1 meal a day till about 7 months.. then went to 2 meals a day at about 8 or 8 1/2 months.. then 3 meals a day after 9 or 9 1/2 months..
you do not want to fill their tummies with too much solid foods or they wont drink their formula..
relax.. you are doing fine.. your baby wll not care if he gets bananas or apples first..