At my job if we remain in our office during lunch we are expected to still be available for work related questions/calls/etc... I find this to be very annoying as my lunch break is a time that I use to recharge for the second half of the day. I wouldn't mind it if I weren't interrupted multiple times every day, it just spoils the time to recharge. Many people take their lunch breaks at different times since we have a flexible start and end time during the day, so some people work while others are at lunch.
My current strategy is to leave the office during my break to eat lunch at a park right down the street, go on a walk, or to do some shopping or minor errands in the area if possible. This works fine for now, I am enjoying getting outside during lunch. Come fall and winter though I will need to remain inside and we don't have a designated break area for my department, everyone just uses their office.
Anybody have suggestions for creative solutions for this problem? I can't always get out of my office for lunch, but I want to preserve my break if possible. It may sound selfish but it helps me to stay focused during the day if I get an uninterrupted break in the middle to relax.
To clarify, I do not have to actually do any work during lunch, unless something urgently needs done that minute (rare) but I just want to stop the interruptions.
EDIT: Am I being reasonable to not want any interruptions during lunch? Or should I just be more tolerant of the fact that this will probably be an ongoing battle at my particular job?