Steps
1. In a saucepan, heat the vegetable broth over low heat.
2. In a separate skillet, heat the olive oil over medium heat. Add the chopped onion and sauté until translucent, about 3 minutes.
3. Add the minced garlic and sliced mushrooms to the skillet, cooking until the mushrooms are tender, about 5 minutes.
4. Stir in the Arborio rice and cook for 1-2 minutes until the rice is lightly toasted.
5. Begin adding the warmed vegetable broth, one ladle at a time, stirring frequently. Wait until almost all the liquid is absorbed before adding the next ladle.
6. Continue this process for about 18-20 minutes until the rice is creamy and al dente.
7. Remove from heat and stir in the grated Parmesan cheese. Season with salt and pepper to taste.
8. Serve hot, garnished with fresh parsley if desired.