Warm the broth
Heat vegetable broth in a saucepan over low heat and keep it warm.Cook the aromatics
Heat olive oil and butter in a large pan over medium heat. Add onion and cook until soft. Add garlic and cook for 1 minute.Toast the rice
Add arborio rice and stir for about 2 minutes until slightly translucent.Add broth gradually
Add one ladle of warm broth and stir gently. Let it absorb before adding more. Repeat this process, stirring occasionally.Add vegetables
When the rice is halfway cooked, add asparagus, peas, and zucchini. Continue adding broth and stirring until the rice is tender and creamy.Finish the risotto
Stir in parmesan cheese, salt, and black pepper. Add fresh herbs or lemon zest if using. Serve immediately.