My son's also on this diet. Trying to think back to what a 9 month old might be able to eat ...

Continue experimenting with different fruits and vegetables. What about some soft cooked minced meat (lamb, turkey, chicken or beef)? I buy rice flour sticks in the shape of rusk sticks but with the texture of cruskits for my son. They are made with nothing but rice flour and water and are sold in heath food stores. Do you need to avoid gluten? If not, have you considered trying oats mixed with either EBM or water for breakfast?