...all under a cover by Ernie Chan.
Here's the story behind the original presentations of these tales.....
Action Comics #326
These alien insects descended on Earth, and even Superman was powerless to defeat this insect army and their assorted abilities. Superman was able to track down the alien ship that deposited these creatures on Earth, and learning of the motivations of those who released them, figured out a way to stop the giant bugs.
Green Lantern #3
Green Lantern was meeting his fan club at charity event, then returned to his alter ego to meet his girlfriend, Carol Ferris, where Carol told Hal she plans to take advantage of the leap year tradition to ask Green Lantern to marry her at another charity event Green Lantern will be at. Hal, to save his secret alter ego (so he can woo Carol as himself), creates a power ring monster to menace his heroic self...but, this plan goes awry as the menace becomes too menacing (and then GL has to not only face Carol's proposal, but that of his female fan club as well!).
Star Spangled War Stories #132
The story involves a cop and a criminal, who end up enlisting in the army together, getting captured by the Japanese, then, in escaping their POW camp, end up together on Dinosaur Island. The two have to work together to get off the island (and fend off the beasts), yet, the criminal also plans to kill the former policeman. This tale does not end well for either of them....with quite the pyhrric victory for the survivor of the human battle.
Marvel Family #7
The Marvel Family faces off against The Three Faces of Evil, as they break free from their prison under the Rock of Eternity (home of the ancient wizard, Shazam, who powers the Marvel Family), and split up to cause mischief, which is thwarted by Cap, Mary and Junior, who split up to each take on one face of evil....then battle to reunite them, and return them to their prison under the Rock!
Holy Moley! Enough monsters for you?