Pour the chicken broth into a large saucepan and heat it on the stove top until it comes to a full boil. Reduce the heat and keep the saucepan covered while you sauté the vegetables. You want the broth to remain at a boiling point, but not be boiling out of control.

Add 2 tablespoons of avocado oil to a Dutch oven or thick-bottom large saucepan and heat to medium-high. Add the onion and sauté, stirring occasionally until translucent, about 5 minutes. Add the mushrooms, asparagus, and garlic and sauté until mushrooms are golden-brown, about 5 to 8 minutes. If at any time the vegetables begin to stick to the pan, you can add a small amount of water or broth to deglaze it.

Transfer the vegetable mixture to a bowl and set aside. Add the remaining 2 tablespoons of avocado oil to the Dutch oven, along with the arborio rice and about ¼ cup of broth. Stir the rice constantly and allow it to brown slightly for 2 minutes. 

Begin adding the broth to the rice, one ladle full at a time (about ¾ to 1 cup), stirring well between each addition and allowing the liquid to mostly absorb before adding more. Add the dried parsley, rosemary, and lemon zest and juice.

Continue adding the broth and stir constantly until the rice is completely cooked. The texture should be slightly al dente, but nice and soft but not mushy. You may not need all of the broth. Add the vegetable mixture back into the pot with the rice along with the peas. Stir well. If adding cheese, do so now.

Serve alongside your main entrée.