CHESTERFIELD COUNTY, Va. Kristen's Kitchen, a Chester restaurant best known for its crab cakes, has teamed up with Commonwealth Autism to offer job opportunities to people on the autism spectrum.It all started with owner Kristen Bortone's son: 15-year-old Ryan. Ryan has autism and global developmental disabilities. When he was born, doctors said he would never walk or talk. Now as a teen, he spends many days greeting customers at the door."It's …