Yes, your baby should be able to get all he needs from breastmilk. Iron might be the only thing to worry about. You can try to give him yogurt and cheese for dairy, but breastmilk has enough calcium. Avocados have a lot of iron and other nutriants in them. Some people introduce meat at your baby's age. Just blend it up real well. AS LONG AS you are breasfeeding he is getting what he needs. Until he turns one, solid food is meant for practice and introducing variety. You don't have to be too concerned about how much he eats.
www.wholesomebabyfood.com has a lot of ideas on foods to introduce to your baby.
State Certified Early Childhood Special Education Teacher
New Mom as of March 2009!