Hi mam my son have a 28 weeks premature baby..now 8 month old..tell me the weight gain food

A. Namaste Mom, If the baby is ready for weaning foods , you may give semi solid to mashed and soft consistency foods, go slow in small quantities first as to observe how the baby is taking it as such. include steamed vegetables, ragi,suji porridge, home made cerelac mix , also rice,dal. kichidi, curds , ghee etc