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, ensuring full coverage.
03 - Layer the remaining cake cubes on top of the strawberries, followed by the remaining strawberry pie filling.
04 - Whisk together cold milk and vanilla pudding mix in a medium bowl until thickened, about 2 minutes. Fold in sour cream and vanilla extract until smooth and well combined.
05 - Evenly spread the pudding-sour cream mixture over the cake and strawberry layers using a spatula.
06 - Top with whipped topping, spreading gently to cover the entire surface completely.
07 - Sprinkle sliced almonds and fresh strawberries on top if desired for visual appeal and texture.
08 - Cover and refrigerate for at least 2 hours or overnight to set and allow flavors to meld together.
09 - Slice and serve chilled for best texture and flavor.