You have to use vented containers and train your staff to open all the vents. Some chains do it better than others. Or you could just use paper containers. Their isn't really an elegant solution w/ styrofoam.
I kind of get tired of chicken fingers at Caines, and wish they had 1 or 2 more menu options. But, you know what I never get tired of, is the staff smile and look genuinely happy to work there. Their clean bathrooms. That they have yet to get my order wrong, or forget anything in my order. The food is always good. I never get tired of that. They are just better at staffing than any restaurant chain in the city.