Heat the oil in a dutch oven. Add mushrooms, shallots and garlic and cook until garlic is fragrant and mushrooms have started to soften, about 5 - 6 minutes. Add quinoa flour and stir to combine and mushrooms are coated.
Add coconut milk & broth (start with 2 cups and add more if needed), followed by quinoa. Bring to a boil then reduce to simmer for 20 minutes, until quinoa is cooked. Add more broth here if needed.
Stir in lemon juice, season with salt and pepper (and Sriracha if using). Cook for another 5 minutes.
Serve immediately. Garnish with fresh herbs and additional sauteed mushrooms.