I know it's hard to build out into other markets with a biz model like this, but would totally give you money for something like this in South Florida. :) (And could even hook you up with a few local chefs that I've tried this with on a one-on-one basis.)
The biggest problem I've had solving this on my own is agreeing on the menu ahead of time so I don't get blindsided with the bill afterward. Would love to see how you solve this without signing up.