Preheat oven to 425 degrees. Place 1 lb wild Chilean sea bass (or white flaky fish of choice), cut into 2 or 3 pieces, in a roasting pan along with 1-2 packages of shitake mushrooms (about 4 cups). Drizzle with 2 tbsp olive oil, minced onion, dill & himalayan salt. Cook until fish is flaky in center & top is slightly browned, approximately 30 minutes. Serves 2-3.