Now he is suing McDonald's and Wendy's in a Brooklyn federal court
Chimienti accuses the fast-food chains of defrauding customers with their marketing
He says they use undercooked beef patties in ads, making them appear 15% to 20% larger
The complaint quotes a food stylist who's worked for the chains and says she prefers using undercooked patties
McDonald's and Wendy's did not immediately respond to Reuters' requests for comment
The class action is similar to a Miami lawsuit against Burger King, which is yet to respond formally