Nope. She's gotta haul out something she already ran a little while ago about Mike Pattersnarfing as a defense mechanism.
Panel 1: We start off with Mike CHEW-CHOMP-GOBBLE-GULP-GLUTting down his dinner; since his cheeks are distended by the food he's angrily wolfing down, he looks like an enraged hamster.
Panel 2: This so angers Elly that when she asks him where his manners are, her question mark is replaced by an exclamation point.
Panel 3: She says "You're eating like a
Panel 4: He whines "But MAAAAAAAAAAAA!!! This is liver and spinach!! If I slow down, I'll taaaaaaaaaaste it!"
Summary: The worst part is not that Elly also eats like this and wants him to do something she is not willing to do. It's not that we already saw this a few months ago. It's not even that he's expected to eat foods he hates. It's that he's expected to do so alone; it's as if Elly is setting him up to fail so she can yell at him for doing something she knows to be impossible.