Someone needs to put up an online recipe database you can search based on the ingredients in the recipes. Every recipe database I've seen is just your basic search tool where you type in a word or phrase and get every result with that word or phrase in it. What would be 100 times better would be a search system like Wowhead, where you can set up a filter based on characteristics of the item, only this would be just a basic search page with with several inputs, and instead of searching for, say, "Chicken Parmesan" you would search for "chicken breast" "onion" "apple" "garlic" and "green pepper." And instead of getting every recipe with "Chicken Parmesan" in the title, you would get recipes with your ingredients in them.
I know I can't be the only one who looks at the items in my refrigerator and just can't think what to make with them. This website would make millions.