The phrase "weeknight option" refers to a choice or activity that is specifically available or suitable to be done during the weekdays, or weeknights, rather than on weekends.
Sentences with «weeknight option»
Stir - fries are great weeknight options because they're fast, which means your ingredients should cook up in a snap, thanks to the high heat (more on that in a moment). (bonappetit.com)
As a fast weeknight option, you could omit the stuffing all together and just do the coating. (strawberriesforsupper.com)