iEat is a free web-based recipe sharing application. It allows you to create recipes, meal plans, covert recipies to different measurement systems, and generate shopping lists.
Visit the Live Demo page to download a complete, pre-configured iEat package which you can run without any setup or requirements other than a Java JDK 1.4 or later. This can give you a good idea of how iEat works and be used as a starting point for configuring iEat for your own use.
The ieat project page on SourceForge contains project info. For further information please email msqr@users.sourceforge.net.