Cook orzo pasta according to package directions. Drain, toss with some olive oil and set aside. Cook bacon in a cast iron skillet and let it drain on paper towels. Crumble with your fingers so you have small bacon pieces. Keep some bacon grease in the pan (about 1 tablespoon)

Carefully peel fava beans. Prepare a bowl with ice water. Fill a saucepan with water and bring to a boil. Slit the edge of the fava bean pods with a sharp knife and pull out beans. Boil them for about 4 minutes or until tender. Drain & chill beans in the ice water to stop the cooking. Drain the beans again.

Sauté chopped shallots in the skillet with bacon grease for a few minutes until translucent. Add the fava beans. Sauté a few minutes more

Turn down the heat and add the sour cream. Mix the ingredients together. Add the sauce to the pasta and combine well. Garnish with chopped shallots, bacon pieces and chopped Italian parsley.