Steak and Pie - Lady and Sons Restaurant

2 sticks butter, divided, plus 2 tablespoons for steak and more for greasing pan 1 (3 oz) package cream cheese, softened 1 3/4 cups all-purpose flour, 1 cup for crust, 3/4 cup for filling 1 1/2 cups half and half, or cream 1 (10.75 oz) can condensed cream of mushroom soup 1 (13.25 oz) can sliced mushrooms, drained 1/2 cup Parmesan cheese, grated 1 egg, beaten 1 lb cooked shrimp, peeled, deveined, and coarsely diced garlic powder buttered bread crumbs, for topping 6 sprigs fresh parsley, for garnish 3 lbs beef tenderloin, cut into chunks 2 tablespoons olive oil 1 tablespoon garlic, minced 1 cup fresh mushrooms, sliced 1 1/2 cups green onions, sliced 1 cup beef stock 1 cup heavy cream