MakeUseOf recently highlighted programs for organizing clothes. I wonder if there is a program where you enter what you have in your kitchen and it will suggest recipes that uses the items you already have.
MUO review: http://www.makeuseof.com/dir/food-pair-search-for-recipes-based-on-ingredients/
MUO review: http://www.makeuseof.com/dir/myfridgefood-find-recipes-with-ingredients-you-have/
MUO review: http://www.makeuseof.com/dir/recipepuppy-search-recipes-by-ingredients-on-hand/
There are several options: Food Pair, RecipePuppy.
I personally use AllRecipes' ingredients search, where I type the ingredients I want to use, and the ones I don't.