And what ingredients do you always have?
Mel - look for a book called "The Psychic Chef Cookbook" - don't know who wrote it - they probably used a ghost writer. But, it should probably have recipes that automatically adjust "on the fly" to what you have on hand. Wait - maybe that was from an episode of Charmed?
The main problem with your question is that it is so broad and ambiguous that there is no way to seriously answer it.