Have a sign over the MTO area with the wait time for the last customer or average wait time for the last few customers. Several times I have stopped in at Sheetz for a "quick" meal only to wait 15-20 minutes. Sometimes I can gauge wait time based on the lines, but not always. This has caused me to be late or in a hurry to make it on time when I only planned a 5-10 minute stop. If I know there is going to be a longer wait, I will do grab and go instead of MTO.