Try porridge/rice with soup with some seasonings powder? (Like Lilo baby’s chicken/fish powder) Alternatively, try BLW. My baby doesn’t like to be fed, she likes to pick food on her own (with varieties to choose from). Although slow but she will finish. By 9mo, my LO prefer more solid textured food than puréed food. And you mentioned he’s interested in adult’s food, can consider cooking the same except that don’t add salt/sugar to his portion, let him eat together and show him that you all are eating the same food.
My son is 11 months and im experiencing the exact same thing. No answer for this because i am worried too.
Anonymous