Around the dinner table sits the loud, contentious siblings of the Castellano family. They have come together to maintain their tradition of eating macaroni and meatballs at Sunday dinner following the recent death of their parents. After Don, the progressive but abrasive middle-child, comes out as vegan, it sends his two brothers and sister-in-law into an offended spiral of confusion. Dante, the stubborn, traditionalist older brother, feels Don is disrespecting their parents while his overly sensitive wife, Bobbie, is insecure about her meatballs and yearns for peace and quiet. Dino, the dimwitted, aimless, younger brother keeps confusing everyone with his random thoughts and is humored by Don's genial and appreciative boyfriend, Josh. What ensues is a battle of brother vs. brother, tradition vs. progression, meatballs vs. quinoa. It just might take an outsider's perspective to shift the Castellano way of thinking.