I discovered this website yesterday. The concept is pretty cool : Your friends are coming over and you don't know what to cook for them.
Guess what? They have the solution here! http://whatthefuckshouldimakefordinner.com/
If they "Don't fucking eat meat" there's a section for vegetarians !
When you get to the website it shows you a recipe, and if they "Don't fucking like that" you get a link for other ideas =)