Carl's Jr. is offering its new guacamole double cheeseburger for $2.99 on National Avocado Day only.
Qdoba offers free guacamole every day at participating locations. However, it's still commemorating National Avocado Day by hosting a Change.org petition to encourage other restaurants to stop charging extra for guacamole.
"... We won't be satisfied until extra guacamole is free of charge for people everywhere," the text of the petition reads. "So today, we're calling on all of our Mexican eats competitors - you know who you are - to come together, just this once, around a common goal: to make guacamole free of charge, not just for one day, but everyday."