This is a mushroom and cauliflower pasta sauce. Bon Appetit calls is Bolognese but certain elements of the food law enforcement establishment seem to find this to be an impossibility, possibly criminal.
I had a head of cauliflower and a box of mushrooms when this recipe landed in my lap. While I can say it doesn’t really sound that tempting, it turned out to be really very good. Once the processed mushrooms cook down you add the processed cauliflower, tomato paste and rosemary and once that got all cooked up it sure looked like Bolognese anyway.