Now studies actually show that it is better to introduce foods such as peanut butter, eggs, fish etc early. My daughter's pediatrician said to start introducing them as soon as she was eating solids.
I serve the same meal to all ages. Like the women above mentioned, I just blend, chop or cut accordingly. I bake sweet potato and steam all other organic veggies (keeps more nutrients than boiling) and then I keep them in the fridge up to 3 days. This way I only have to prep twice a week. I always give either whole wheat or whole grain bread unless I make whole wheat pasta which I may keep in the fridge for a day or two. Meat I make chicken, beef, eggs, beans etc or I give peanut butter or tuna. I give organic fruit for dessert. And milk is given at lunch (after their meal has been eaten) and water the rest of the day. Snacks are usually fruit and crackers, or cheese and fruit/crackers, yogurt etc. I keep it really simple. Easy for me, easy for the children!