This debate also splits down generational lines. For older generations who grew up with a classic beef patty, the historical definition is the only one that matters. But for younger diners, who have grown up with endless choice, a ‘burger’ is more about the experience than the ingredients. Whether the patty is made of beef, chicken, lentils, or lab-grown science, if it’s served on a bun with toppings, they’ll call it a burger. It’s a classic case of tradition versus evolution, played out on our dinner plates.