01 - Arrange half of the angel food cake cubes in an even layer in a large trifle dish or 9x13-inch glass baking dish.
02 - Spoon half of the strawberry pie filling evenly over the cake cubes.
03 - Layer the remaining cake cubes on top of the strawberries, followed by the remaining strawberry pie filling.
04 - In a medium bowl, whisk together cold milk and vanilla pudding mix until thickened, about 2 minutes. Fold in sour cream and vanilla extract until smooth.
05 - Spread the pudding-sour cream mixture evenly over the cake and strawberry layers.
06 - Top with whipped topping, spreading it gently to cover the entire surface.
07 - Sprinkle sliced almonds and fresh strawberries on top, if desired.
08 - Cover and refrigerate for at least 2 hours (or overnight) to set and allow flavors to meld.
09 - Slice and serve chilled.