Think there are numerous companies already doing this and sure there are a few in city centres who do a door to door thing.
Personally, I wouldnt do it. Food is a difficult industry, once in processing the laws, tracability and fears of litigation terrified me. Have had many a christmas worrying if someone didnt cook their turkey properly or I've poisoned them.
I ran a meat business for a number of years and it wasnt profitable at all. This sort of market is aimed for the very switched on people with good disposible income - and will probably be foodies who know excellent tasting food. Some meals dont freeze that well and some do. and lets face it the meals that do like mince are easy to produce.
I would expect that many people who like the better side of ready meals prob buy from M&S, Waitrose etc. Even through not brill but very cheap.
Please think about your profit margin. How many meals you would have to produce a week to make it worth your effort. You couldnt afford to take on anyone on either, you need good insurance, excellent product and ingredient knowledge understand tracability and food production from field to fork, investment with pots, more cookers etc. Endlessly peeling potatoes - not so glamorous is it?.....marketing is a complete nightmare as no small business can afford this side of business which is the starting of many successful business. I spent thousands on advertising, leaflet drops etc.
This is why all cottage industries all turn into mass production industrial unit producers. Its not viable and the hygine is so controlled now.