Slice the onions and mushrooms into bite-sized pieces.
Heat olive oil in a pan and sauté the onions.
Add mushrooms and sauté together.
Add the rice and cook until it turns translucent.
Pour in the white wine and simmer until reduced.
Gradually add vegetable broth several times, cooking the rice until done.
Season with salt and pepper.
Sprinkle vegan Parmesan cheese on top after finishing.