The city of Los Angeles is in the midst of a street food boom, and Alex Chu, owner of The Dim Sum Truck, is one of the younger food truck owners on the scene. At just 23, the USC graduate already has a loyal following for two reasons: 1.) He left the making of his steamed and fried Chinese dumplings to the professionals, and 2.) Previously, good dim sum could only be found way out in the San Gabriel Valley, a treck most Angelenos were unwilling to make. Add to that the fact that dim sum is usually only sold during lunch hours and you've got a million dollar idea for a food truck.