What is the fine-grained topic of the following text: The launch party is where you’ll be able to bring any leftovers from dinner (or from home) and watch chef Madita Kosch turn them into tasty canapes that you can bring along with you to interactive workshops on food waste (including some food art), guest speeches, and a tour of the local community garden. Only return the topic.
A launch party featuring leftover food transformation, food waste workshops, speeches, and a community garden tour.