David “Conan” Cohn steps up to the counter at the Blue Burrito Grille and asks the woman behind the register, “What’s the biggest burrito you’ve got?” Conveniently, in the grand tradition of restaurants challenging their hungriest customers, the Phoenix-based chain lists its biggest specialty first on the menu, aptly called the “Big Blue.”

“Perfect,” Cohn smiles. “And a glass of water.”

Soon, the 6-foot-two, 202-pound Cohn is hunkered down at a table with the $8.75 monstrosity sitting before him. Grasping the anaconda-like burrito stuffed with charbroiled chicken, black beans, guacamole and cheese, he nods to his companion who’s looking at a stopwatch. “Ready?” Read Full Story...