Steps
1. In a saucepan, heat the vegetable broth over low heat.
2. In a separate pan, heat olive oil and butter over medium heat. Add the chopped onion and garlic, sautéing until translucent.
3. Add the sliced mushrooms and cook until softened, about 5 minutes.
4. Stir in the Arborio rice, allowing it to toast slightly for about 2 minutes.
5. Gradually add the warm vegetable broth, one ladle at a time, stirring frequently, until absorbed. Repeat until the rice is creamy and al dente, about 18-20 minutes.
6. Stir in the grated Parmesan cheese, and season with salt and pepper to taste.
7. Garnish with fresh parsley before serving.