Toplane advice vs Nasus - High plat

So I've been playing League since preseason one. I dare say I have a general grasp about the game. Toplane main for most of that duration.

But I cannot figure out how to deal with nasus on high plat/low dia.

I play Olaf/Sett/Garen/Morde/Illaoi. Champions that want to dominate lane. Nasus invites me to dominate lane. But whenever I zone him from his farm and play 20 cs up on him, I will inevitably push the lane. And that makes me vulnerable.

I don't need advice on how to beat a Nasus on lane. That part is easy.

I need advice on how to play that lane in a 5 v 5 environment.

As I see it, there's three options: A) I zone him, prevent him from farming, eventually pushing him under turret in doing so. - This usually gets me ganked and killed. Wither is a very good spell. The Nasus will happily farm with E, maybe even max E. B) I ask my jungler to help prevent the Nasus snowball. - I really do not want this though. Junglers need to gank mid/bot right now, toplane is utterly useless. There is also really no point in picking Olaf to win lane (and free up the jungler to do other things) when I still need help anyway. Might as well pick kayle. C) I play passive, expecting a 2 v 1 lane and stay back under my turret, playing ungankable but allowing Nasus to farm. - Something tells me that this is the solution. But it feels so fucking bad to do this. It's okay on Sett, because his skills are actually useful, but as Olaf it just means I will be SO weak later and never able to lane against Nasus.

So yeah. How do you lane against Nasus on an elo where you can't just "win lane, he weak" any more?