please suggest best weight gaining food for 7 months boy

A. There is no specific weight gain food for the child it has to be a balanced nutritious diet but as of now you can include Khichdi porridge with or without vegetables you should give healthy fats like Desi ghee and butter which will be good you can give dry fruit powder you can give varieties of food prepared out of ragi oats and Suji all the kind of food that healthy can be given