Mix up your shrimp platter and set out Avocado Cream to serve alongside this traditional appetizer.
Scoop pulp from avocado into a medium bowl, and mash until very smooth. Stir in sour cream, dill, parsley, lemon zest, lemon juice, and minced green onion. Add salt and pepper to taste. Serve immediately, or cover and chill up to 1 day. Stir well before serving.