By this age you should be introducing cereals, fruits and veggies. Begin with one food at a time and only one food a week. This is done to make sure the child does not have any allergies, and if so, you can deduce which food easier. There are rice cereal, oatmeal cereal and mixed grain cereals. Then there are cereals that have fruit in them such as banana and peach. I used to mix the cereal and formula. Do half formula and half cereal to thicken bottles. Or you can prepare the cereal as normal and the consistency is like that of a soupy oatmeal. I then introduced soft foods such as yogurt, cottage cheese, apple sauce, smashed bananas, smashed-steamed carrots, mashed potatoes, etc. Once the child is about 6 months the child can begin eating regular table foods in small bites. Crackers, pretzels, pasta, rice, steamed veggies, sliced fruit that are soft like strawberries, peaches, pears. I didn't give them apples until later around a year because the pieces were so hard they had a hard time swollowing. Children do not chew very well until after a year old or so when they have several back teeth in.
Many doctors suggest not giving solid foods until after a year old. I think it depends on your child. My boys are rather big for their age... both in the 95th percentile, so they needed more nutriets and were ready for solid foods much sooner than smaller children. The formula and cereal type foods would not satisfy them. I think you need to use your own judgement as a mother to decide when to introduce solid foods. 4 months for cereals, baby food in jars and mushy foods. 6 months for crackers and bites of table foods. They should be off the bottle by 1 year old, so keep that in mind when introducing new foods when they are younger. Although children crave the bottle, they do not receive enough solid foods to carry them between meals or through the night.