Not only that but they employ chefs and kitchen staff to run these cafeterias -- generally under better conditions than most restaurants.

This proposal would ban the construction of office cafeterias so if you're just serving free catered food (which is what most small and medium companies do, I'd guess) it's fine.

Exactly. Why waste space for cafeteria. I like to eat at my desk anyways.

What's the minimum they can charge?

Yeah, the proposed legislation mentioned in the article in San Francisco just banning the construction of onsite cafeterias seems to recognize this at least.

So you can construct a cafeteria so long as it's "offsite", and even give employees free meals if they show their badge?

That's how I am reading it. And if their aim is to drum up foot traffic on streets to stimulate local business, I don't think that violates the spirit of the legislation.