When you let him cook but he cooked something so awful you could even say he burnt the food.
Usually, this can be taken in relation to suggestions for a game, or perhaps even making one, but generally can be applied to a large range of things.
It's applicable in any situation where letting someone do their thing ( letting them cook ) has resulted in a worse outcome.
A : We need ideas for monetization on our game.
B : How about pay-to-win microtransactions?
C : Let him cook.
A : Nah, he burnt the food.
A white single mom who has a black baby.
Stacy is Burnt Food don't touch that.