The DiningCity restaurant week is on again. From June 27th to July 3rd 2011 you can dine exclusively and pay surprisingly little.
There are numerous restaurants in Vienna that participate in this promotional week. You can get a 3-course surprise-dinner for 25€ and a 2-course lunch for 12.50€. Gourmet restaurants charge an additional 5€ or 10€ for lunch or dinner respectively.