Not so much a question about eating at work, but eating breakfast and dinner.
What I've been finding is that I don't have anything else to do while eating. I can't write emails etc. Sitting and just eating is boring.
Now, probably having a partner to eat with, would be quite nice, and you can dedicate the whole time to 'us time' but, seeing as I'm single, this one is ruled out.
What I've been finding myself doing is watching TV, or using the internet, but the problem with this is it can extend into time after you've finshed eating ('I'll just finish this episode').