OurChef: You want good dinners, and you want a life. We want to sell you good dinners. OurChef is your personal caterer, with authentic quality ingredients.
One of my previous employer's clients was a company that did exactly this. I don't remember their name, or how well they were doing, but I thought that the idea was a pretty good one.
The only problem I saw was that their meals were typically fairly expensive, to the point where you could probably eat out every day for less money.
Someone has taken the idea and try to scale it since: http://www.facebook.com/cook4food
It's social, it's local, it's mobile, it's cooking!