Volunteers were busy making final preparations at the Windmill Family Restaurant in Concord on Wednesday ahead of their annual Thanksgiving dinner event. The tradition was started in 1990 when Louie Smirnioudis paired with the Friendly Kitchen to offer meals to the homeless. On Thursday, from 11:30 a.m. to 3 p.m. to-go meals will be available to anyone who comes in at no charge, with an option to make a donation. Sit-down meals will be first come, first served starting at noon. Last year, the restaurant served 1,150.