If I wanted to say something like
“I don’t want to eat,”
I could just say
“Ich will nicht essen.”
How could I say
“I don’t want him to eat?”
I think I could probably say something like
“Ich will es nicht, dass er isst/esse.”
Do I have to use the Konjunktiv to make this grammatically correct? Also, can I make the sentence a little bit less verbose by leaving out "es":
"Ich will  nicht, dass er isst,”
or must I use “es” to stand in for “dass er isst”?
In other words, should one use Konjunktiv in subordinate clause introduced by “dass” and should one use an explicit "es" in the main clause before "dass"?