When I go once a month, I use their app to get BOGO Big Mac, Quarter w/cheese, or 10 piece nuggets ($5) or the BOGO Double Cheeseburger ($3) deals. I can eat at Taco Time fairly inexpensively too with their 5 Alarm Burrito. Subway has decent offers too.

I don't do fast food very often but eating it doesn't have to break the bank either.