After my experience at Google I'd recommend that any company of sufficient size provide tasty convenient lunch for free. It's a huge productivity boost. At other companies, I've seen people waste an hour and a half every day assembling people to go out for lunch, order, wait, figure out how to split up the bill, drive back. Much easier to just take that off people's minds.
Dinner and breakfast aren't as useful to provide and I don't think comparatively many Googlers take advantage of them (though breakfast is nice if you have a very long commute.) I did when I was young and single, but no longer. However, I'm virtually certain that providing lunch is a very cost effective way of getting more work done and is a win/win for everyone.