Bacon and Cheese Breakfast Pizza

1/2 lb Bacon, cooked and crumpled
1 Pastry for single crust pie (9 inch)
2 c Shredded Swiss cheese
4 Eggs
1 1/2 c Sour cream
2 tb Chopped fresh parsley

Roll pastry to fit into a 12" pizza pan. Bake at 425 degrees F for five minutes. Sprinkle bacon and cheese evenly over crust. In a bowl beat eggs, sour cream and parsley until smooth; pour over pizza. Bake for 20-25 minutes or until pizza is fluffy and lightly browned.