- Heat olive oil in a pan on medium heat and add the chilli flakes. Using a wooden spoon, coat the flakes in olive oil. 
- Add in the chopped garlic and saute in the oil until they start to slightly brown. 
- Add in the onion and cook until translucent. If you are using the anchovy paste - add it in here  
- Now add in the mushrooms, sauté and allow them to cook down. If it starts sticking to the pan, add a splash of water. 
- Once the mushrooms have cooked down, add in the orzo and sauté in the pan for a minute before adding in the broth. 
- Add broth and allow Orzo the simmer on medium-high heat. Stir occasionally to prevent it from sticking to the bottom of the pan. 
- If you are using Parmesan, add it here. 
- Add salt and pepper to taste. 
- Once the orzo has absorbed the broth and is al dente, remove from heat and serve!