Curate, connect, and discover
I think I saw an advert a while back for bake off: the professionals which completely misses the point but if you're going to do it then:
•no eliminations. Ever. All contestents get through to the end
•no professional judges. Their food is presented to random people on the street or a massive open picnic is held and people get to vote what their favourite dish is
•if they want more masterchef vibes they can have their work experience in a soup kitchen or something