Onion allergy lawsuit filed by Demery Ardell Wilson in Houston alleges a Whataburger staff mistake on July 24, 2024, led to a $1 million claim. Wilson, citing a no-onion request and serious injuries, turns an everyday order into a legal and medical standoff.

Legal fallout from this fast food lawsuit now echoes Wilson’s earlier June 2024 claim against Sonic, as burger chains face scrutiny over allergy risks. Food allergy lawsuits gain fresh attention with every court date—imagine a jury scrutinizing onions, not evidence.