there is no black and white answer to this
it would depend on a lot of factors and what specific steroids you took
the one problem guys do is they eat too much on steroids and gain a lot of fat and water weight. this is not the way it should be done. you should never eat more food on steroids because you believe that you will 'gain more'.. nope, doesn't work like that. you can only build so much muscle in x amount of time.