KMUW | By Daniel Caudill In the Valley Center school district, sixth grader Lizzy Chobad is organizing an effort to pay off other students’ meal debt — with a goal to end meal debt there entirely. It was an experience during the season of giving that led 12-year-old Lizzy to question why people don’t give more during the rest of the year. Lizzy volunteered this past Christmas to hand out presents with the Salvation Army’s Angel Tree, a program t…