Giving 1 month old baby food with formula??


So my 1 month old baby eats so much like every 1-2 hrs and eats 4-6 oz every feeding and does not get full at all especially at night it’s horrible. My family tells me I should try giving him a Lil bit of baby food like oatmeal with formula at night so he can get full and sleep longer .. has anyone tried this?? If so pls let me know