Ruben Studdard, winner of "American Idol." KnoxNews 'Idol' winner eats well at home Weight of 360 pounds due to mom's cookingBy LEIGH ANNE MONITOR, Scripps Howard News ServiceMay 25, 2003When "American Idol" winner Ruben Studdard was a little boy, his mama cooked foods that would help make him grow into a singing sensation. It's likely no one guessed as much back then, but a few specialty Ruben Studdard dishes are oh-so-famous - around mom Emily Studdard's kitchen table in Winewood, Ala. Ruben, 24, the city's tie to the Fox show "American Idol," loves his mama's chicken tetrazzini, her...