The situation was especially bad at one recent job where the lunch conversations always revolved around local sports, which I had no interest in, or this guy remodeling his house, which was only interesting the first 3 times he gave us an update. So I started bringing sandwiches to work, parking in the garage beneath the building, and eating lunch all alone in my car in the dark, listening to NPR or just enjoying the silence. It was the most refreshing hour of my workday and I felt 200% more productive after that break than I would after 30 minutes of small talk about sports.
I just want to point this out to people who think team lunches should be mandatory. Not everyone enjoys them equally, and it's not always just about the food.