In Marvel Zombies Return #4, Zombie Black Bolt saying "brains", and thus taking out half of Hulk's Warbound.
Almost every sentence that comes from Machine Man and Zombie Deadpool's mouths.
Machine Man: Dude, you just staked the zombie version of yourself. You're going to be in therapy for the rest of your life. Deadpool: (to his zombie companion) Come on boy! Shamble! Shamble like the wind!
Zombie Spider-Man asking Are We There Yet? as the rest of them trek through the universe.
Zombie Hawkeye's attempt at fighting Zombie Giant Man.
Hawkeye: Eat arrow, fascist! (fires arrows into Giant Man's neck... who just looks at him, bemused) ... Be my friend?
Nextwave turn up in Army of Darkness vs. Marvel Zombies, saving Ash & Dazzler from the zombified Power Pack, and immediately start fighting the superpowered-zombie-children... accompanied by the caption "Nextwave: About to be humiliatingly killed off-panel."
Zombie Spider-Man in Marvel Zombies Return smelling all the "jungle herbs" Kraven has eaten coursing through his veins, promptly causing him to lose control of his hunger again.
Machine Man drowning his sorrows in beer after learning Jocasta had returned to Ultron.
Marvel Zombies 5 #3 is an extended riff on Army of Darkness, and has the guys in charge talking about how the zombies have interrupted their campaign against the pagans. At the end, with that matter settled, the leaders discuss their plans to resume the campaign... only to discover that the Mighty Thor has finally gotten around to answering the pagans's prayers, and he's not in a good mood.