. >> reporter: you might say dan kudro is the most prolific chef on the planet. he feeds -- >> 27 million people a day. >> reporter: 27 million people a day. >> just in the u.s. >> reporter: dan is the executive chef at mcdonnell's, the culinary overlord of fries, nuts and patties everywhere. perhaps not what you would imagine for a classically trained chef. >> you worked at a four seasons among other things. how is this different? >> i like to think food is food is food. good food is good food. bad food is bad food. how it's different is, i'm working with a different price point. >> reporter: we're behind the scenes in his kitchen because this is the first stop for all mcdonald's products on the way to your mouth. the beginning of a manhattan project of tasting, testing, and tabulating. serving millions and earning zillions does not happen by snapping your fingers. take the angus snack wrap out this month. its gestation period? >> that's fairly fast, that's about 12 months, you know? >> reporter: 12 months. >> 12 months is fast. >> reporter: dan's decisions can l