What is sir chudly talking about

Space Ghost: Now, what about these beans?
Moltar: Those must've fallen out of my hair.
[pause]
Moltar: Well, you're just making all this (bleep) up!
[pause]
Moltar: Oh, what, you're the only one that gets to make (bleep) up?
[pause]
Moltar: Those are part of the dinner.
Space Ghost: No they're not. They're part of the plot.
Moltar: They were on the menu.
Space Ghost: Murder is on the menu.