Cut the angel food cake into small, even cubes. Arrange the cubes in a single layer in a 9x13-inch baking dish. Set aside.
Prepare the pudding mixture
In a large mixing bowl, whisk together the instant lemon pudding mix and cold milk until smooth and thickened. Gently fold in the yogurt until fully incorporated.
Add the lemon curd
Drizzle the lemon curd evenly over the layer of cake cubes, ensuring that it covers as much surface as possible.
Layer the pudding mixture
Pour the prepared pudding and yogurt mixture over the lemon curd and spread gently with a spatula to create an even layer.
Finish with whipped topping
Spread the thawed whipped topping evenly over the pudding layer, smoothing the surface for a clean finish.
Refrigerate
Cover the dish tightly with plastic wrap or a lid. Refrigerate for a minimum of 3 hours, allowing the dessert to set before serving.
Notes
To make this Lemon Refrigerator Cake Recipe gluten-free, substitute the angel food cake with a certified gluten-free version. Ensure that the pudding mix and lemon curd are also labeled gluten-free to avoid cross-contamination.