Tomorrow morning I am making parmegan, which is Sam Turnbull's vegan parmesan.
Every one of her recipes that I've tried has worked, and I have her book as well as using her website and I see she says her omnnivore parents munch this and make it in their own home.
https://itdoesnttastelikechicken.com/parmegan-vegan-parmesan/#wprm-recipe-container-12737
Sounds dead simple! I have to make it tomorrow because we're using the last of the seitan wings cut into strips with some veggies and cheese sauce to go with some pasta. This parmegan will sprinkle over that very nicely.