DIRECTIONS

In a skillet, saute mushrooms in butter until almost tender. Add onion; cook until tender. Stir in the shrimp and 2 tablespoons Alfredo sauce. Pour 1/4 cup of the remaining sauce into a greased 8-in. square baking dish.
    Fill each pasta shell with 2 tablespoons shrimp mixture; place in baking dish. Top with the remaining Alfredo sauce. Cover and bake at 350° for 20-25 minutes or until bubbly. Serve with lemon and parsley. Yield: 3 servings.