If these airports were so stressfull to work at, get an additional controller!
Since they haven't, one could assume that they aren't too busy, and that eating a sandwich and sipping a coffee while controlling the odd RPT Saab/Dash, and a bloke doing circuits wouldn't be too stressful. And if it was, finish the sandwich later!
I don't land the plane at the nearest airport at 1230pm to have lunch - you work around the workload.