Idea: Airbnb for food. An app where you buy meals cooked by your neighbors.

I see two big trends these days.

1) People seems more willing to connect back with their neighbors and community.

2) People have less time but want to eat more healthy.

Imagine this scenario:

While going back home, a student could check on the app what's available to eat for tonight. Next to his place, there's a family willing to sell the extra tacos for a few bucks. The student would then just stop by and pick them up.

Obviously, there would be quality rating and the possibility to reserve a few days in advance.