I may design robotic marketers but I am actually a tax accountant and with more than 1100 tax returns a year, I have come across several small businesses focussed on this business model.
Low margin high volume (think pizza).
http://www.monthofmeals.com/ are great but they are expensive and my kids won't eat alot of what they make though we do and have.
If you have a niche market then focus on it and it should do well. People go with brand or franchising because they know little about marketing and set up so they go with a brand that does alot of that.
If you are going alone, appear like a global brand, your CS has to be top notch and your meals, great value for money.
Still, those customers of mine who do this, use their homes, claim a real loss and offset it against their tax liability from their other income.

Good luck.