Goddess I'm glad you posted this... I've been wondering the same thing though my baby is shy of 8 months. She loves yoghurt too and I make my own with a maker I bought from the supermarket. I use the packer yoghurt mixes and choose the natural sugar free ones. Then I add in grated pear, or minced blueberries etc and as someone else said, a bit of baby rice cereal for added 'solid' value. I was adding yoghurt to the cereal but she wouldn't have a bar of it, but adding a little cereal to the yoghurt so that it retains the yoghurt taste and consistency seems to work.

She also only really likes Rafferty's baby cereal and creamed cauliflower. She did like avocado but now she just spits it out. She is not at all interested in finger foods. I think she may be teething again too.