Steps
1. Heat olive oil in a saucepan over medium heat.
2. Add the chopped onion and garlic, sautéing until translucent.
3. Stir in the sliced mushrooms and cook until softened.
4. Add the Arborio rice, stirring for 1-2 minutes until lightly toasted.
5. Gradually add the vegetable broth, one ladle at a time, stirring continuously until absorbed.
6. Once the rice is creamy and al dente, mix in the chopped spinach and Parmesan cheese.
7. Season with salt and pepper to taste, then serve warm.