New food for 6 month old?

I started feeding my baby at 4 months (due to doctor and health nurse advice) he now has breakfast (weetbix and 3 ice cubes of apple or pear) lunch consists of 4 cubes of apple pr pear and dinner which is vegies (spinach, sweet potato, brocolli, squash, zucchini, carrots all blended of course) he also has 4 bottles of 150mls during the day. What other things can I feed him for lunch instead of fruit. I tried baby yoghurt but he doesnt like it. I give him raw carrot and apple as snacks under constant supervision of course just after some new suggestions please.