More Fun Comics #81, July, 1942.
"The Adventure of the Bankrupt Heroes"
Although the Spectre is the only other star to get his face on the cover, Aquaman is prominently mentioned on the banner, suggesting a resurgence in his popularity.
Admittedly, I only get a half hour for lunch, but it's hard for me to drive to Taco Bell and back in that time. These guys solve a crime and take down a mob of assassins in less than an hour! Come to think of it, they didn't get to eat, though.
Notice that Green Arrow is finally blonde and Speedy is finally a redhead. Also, Speedy's hat has gone back to being yellow except for on page two, where it's red.