Chop the cauliflower and mushrooms into small pieces.
Finely mince the onion and garlic.
Heat olive oil in a pan and sauté the onion and garlic.
Add the cauliflower and mushrooms and stir-fry together.
Add the rice and sauté well, then pour in the white wine.
Gradually add vegetable broth or water while simmering until the rice is cooked.
Season with salt and pepper to taste.
Stir in Parmesan cheese and mix well.