Points for truth in advertising at downtown Chinese operation Stretch the Noodle, which specializes in, yes, noodles—hand-stretched, pulled, double-bounced and thumped all day long by Xuemei Simard inside the homey cart she runs with her husband Duane near Mama Mia Trattoria on Southwest 2^nd and Washington. On a bone-chilling winter day the lunch wait for Simard’s dishes, a tight list of stir fries, soups, and jian bing crepes dispatched in hefty portions, can run long. But there are few mid-day meals downtown that better nail the balance between thrift and bone-deep satisfaction.