Those TV ads are apparently true. There really is an Olive Garden Culinary Institute of Tuscany. Depending how you feel about the truth, you may feel that it's stretched slightly, though. Jaunted.com, which focuses on popular culture and travel, recently "broke" the burning question as to whether the institute actually exists. ...
According to their sources, the "institute" is a group of attractive, rustic buildings with a pool, but that it isn't a full-time Olive Garden cooking school. The chain sends some of its cooks, managers and waiters there every once in awhile, to work on training and menu development.
Olive Garden Cooking School Kind Of Actually Exists