1. Pour the cream into a large heavy skillet or saucepan and place over medium-high heat. 2. The cream will rise before it begins to boil; just stir it to keep it from overflowing. 3. Once it begins to simmer, add the herbs, salt, peppers, green onions, and parsley, and continue to let simmer until it becomes thick, 7-8 minutes. 4. Stir in the shrimp and let cook 3-4 minutes, then add the crawfish. 5. Mix well and let cook 2-3 minutes. 6. Gently fold in the crab meat (you paid a premium price for it, so don?t destroy those precious lumps). 7. Let cook 2-3 minutes more, then add the 1-1/2 cups cheese and stir gently until it has melted. 8. Preheat the broiler. 9. Pour the hot seafood mixture into a large ovenproof dish or individual ramekins. 10. Sprinkle the top with the Parmesan cheese and glaze under the broiler. 11. Serve immediately.