How did something as simple as solids get to be so complicated? If your baby is breastfed - your milk is all she needs for at least the first 6 mnths. If she is bottlefed, she might benefit from the earlier introduction of solid foods, if she is developmentally able, to make up for the deficits in nutrition that fully formula feeding entails.
Have a taste of the pureed jarred and tinned baby foods. Blah! Babies need real food. Most experienced mothers will tell you that by 9 or 10 mnth a baby will just about eat the ham sandwich out of your hand. Watch your baby. She needs to eat the same heatlhy family foods you eat and will enjoy them much more if allowed to explore them herself