Heat the olive oil in a skillet. Add the shrimp and saute until pink. Remove and keep warm.
Add the green onions and the green peppercorns to the skillet and cook for one minute. Add the Pernod and bring it to a boil (you can flame it if you're feeling dramatic and play it safe).
Add the cream and sour cream and stir into the skillet. Reduce by about one-fourth.
Return the shrimp and asparagus to the pan and cook for about two minutes, until asparagus are tender. Add salt and pepper to taste.
Add the orzo to the pan and toss with the shrimp to distribute all the ingredients. Garnish with fresh basil.
