Eating puree

Hi mommies,

My 15 months old still

Likes to eat pureed food .. he eats snack like puff, biscuits bread little bit and he is ok but his meal has to be pureed .. m not sure what to do .. he was identified having little bit reflux and taking zantaz as of now.. he starts gaggin if i dont puree his rice dal porridge .. or avacado .. he wss eating banana mashed .. so its very confusing .. as he is ok to eat granular stiff ehrn it comes to snacks but he want purees when it comes to meal ... advice needed