11 month old won't eat

I am having problems with my eleven month old eating anything but formula or puffs. I have tried baby food and a bunch of other different kinds of food and he just won't have it. Any suggestions? I'm thinking I might have to keep him on formula after the age of one?

Thank you for any suggestions it's appreciated.

DS is exactly the same, I'm keeping him on formula for now, I won't force feed him