For many years, I've loved Boston Market (and when it was called Boston Chicken). The food is great because it's healthy, fresh, and filling. My favorite sides are mashed potatoes, macaroni and cheese, and corn (check those out first!). They have excellent carved turkey and chicken.
The only complaint I would have is that prices tend to be a bit high for this mix of fast-food/quickie restaurant location. Especially if you are there for your lunch when things should be cheaper. If you are headed to the drive thru, expect the wait to be extremely long.