When I need a meal on the run my favourite place to visit is The Extreme Pita. Tasty and healthy to boot I find its a great alternative to Subway (which is far too carb-laden for my tastes). As soon as you enter the store there's a huge chart that lists the nutritional values of every single item on the menu (a substantive breakdown that includes sodium and fibre in addition to the usual calories, fat, carbs, etc.). Take a look:
http://www.extremepita.com/web/
Swiss Chalet is a decent choice too, especially if you modify the standard "1/4 chicken dinner" order. I always request white meat with the skin removed and garden salad with raspberry vinegrette (instead of the famous baked potato or fries). I don't use the butter that comes with the little bun and dip it in the "Chalet sauce" instead. Being a Weight Watcher's follower, I feel good knowing I can eat a filling 7 point guilt-free meal (chicken breast (3), salad & dressing (1), bun (2), sauce (1).
I attend a lot of interoffice meetings where food is provided, but it usually consists of mayonnaise-based sandwiches, pasta salads dripping with oil, donuts, or worse yet, ordering in chinese food! I make it a habit of keeping little tubs of food on hand for such occasions. For example, tinned tuna or salmon moistened with a little lemon juice and mixed with diced celery and green onions(to spread on fibre bread), grapes and cubed melon, raw veggies and suitable dip, nuts and dried fruit, a couple of hard boiled eggs, along with other things that are easy to buy, store and bring to work such as single-serving containers of yogurt and fresh whole fruit.
Too bad you have to work today, but I hope you have tomorrow off to relax and enjoy Thanksgiving!