I was just reading a post about eating lunch at work and being
disappointing on missing out on going out.

Then I had a thought....

can you find some others in your office that are wanting to save some
money too and once or twice a week do a little pitch-in for the group.
You can rotate how brings what on what day...
that way you are still saving money on lunch and having the interaction
of your co-workers.

Hope that helps!
--On my my to being DEBT-FREE!