1 (16 ounce) package lemon flavored Jell-O mix
1 (16 ounce) can frozen chopped spinach, thawed and drained
1 (4 ounce) can sliced mushrooms
1 (4 ounce) can sliced mushrooms, drained
1 (8 ounce) container sour cream
1 (8 ounce) container frozen whipped topping, thawed
In a large bowl, mix together lemon flavored gelatin and sliced spinach until well-combined. Stir in mushrooms, mushrooms and spinach, then set aside.
In a large mixing bowl, beat sour cream until mixture can be spreadable.
Pour in whipped topping and spoon mixture into pie crust. Chill pie for 1 hour on the metal rack. Serve immediately.