What Burger With A 91 Percent Fat-free Patty Appeared On McDonald's Menu's For Five Years?

McDonald's is one of the biggest fast food chains around the world. It introduced its 91% fat-free patty burger in 1991. It was called "The McLean Deluxe sandwich" and it featured a 91 percent fat-free beef patty. The product was a flop and after 5 years it was dropped from the menu.

I think you want to ask the name of that burger. It was in fact a sandwich called, "McLean Deluxe sandwich". It was introduced in 1991 and stayed in McDonald's menu for 5 years.