I'd like to speak about the ESCF in Paris (6 Arr.), France. This school offers the opportunity for everybody who already had a bachelor degre to become a chef. For that you need to get the two first diplomas which are CAP-BEP. Then, you can try to pass the ESCF entry exam. If you got it, before the school, you will be asked to find a job in the restaurant business to increase your cooking skills, your knowledge and your motivation.
They created that school for the professionnals who would like to get some knowledges about accountancy, price cost....
ESCF is about two years and each year is divided by 6 months at school and 6 months training in the best hotels or restaurants in France. At the end of the school, you will present your dissertation in front of a jury (composed by a chef, an accountant, a banker...).
You will get your diploma if the jury think that your business plan is good.
Interestingly, there is a formation for people who speak English.
If you are interested in, let check the website (above) and there is a restaurant in the school where you can visit the kitchens and see the students working before being served.