Having recently eaten at Vidalia, I can vouch for its deliciousness. The overall dining experience was quite nice and the food was exceptional (although each dish came in exceptionally small portions) .
Thus, I was delighted to discover that Vidalia is celebrating their 15th anniversary of serving yummy food by giving YOU a little present! They're offering a three-course tasting lunch for a recession-deal of $19.90 -- which apparently references the restaurant's address - 1990 M Street. Clever.
More deets at Metrocurean.