Casual canteen type restaurants and/or pay-and-weigh salad bars in Zurich?

Looking for some suggestions on casual canteen type restaurants in Zurich? Basically where you go in, pick up food on a tray, pay and seat yourself. Typically cheaper than the average restaurant and no need to deal with servers, etc. Please also list employer canteens open to public.

Examples:

- Hiltl/Tibits

- Migros/Coop restaurants

- Jelmoli restaurant

- Credit Suisse Uetlihof canteen

- Air restaurant at ZRH airport

- EPI Clinic canteen

- SBB Restaurant Oase

Credit Suisse Cantine Oerlikon Vertex building (although not sure for how long)

Manor Restaurants.

I‘ve used the SBB canteen at HB - just for a coffee.

„Crashing“ (not really as many are open to the public) worker canteens is something I keep meaning to do.

Near where I work is the mediacampus staff restaurant which has some good reviews on TripAdvisor - I will try once and report back here.

Cheers,

Nick