Hun, babies don't need much in the way of solids at 7 months. If he's not eating a lot with BLS, it's most likely because he doesn't need much yet. If you are happy to keep pureeing then that's fine, go with that, but you might like to include some meat if you can. Also, the chewing/sucking on pieces of steak and bones should still work and will help with the iron and zinc levels.