1. 1. Preheat the Oven and Prepare the Baking Dish

Preheat your oven to 350 degrees F (175 degrees C). Line the bottom of a 9×13-inch baking dish with aluminum foil and spray with cooking spray to ensure easy removal and clean-up.

2. Mix Lemon Zest and Juice
In a bowl, combine the zest of 1 1/2 lemons and the juice from 2 lemons. This mixture will infuse the cream cheese layer with a bright, citrusy flavor.

3. Prepare the Cream Cheese Mixture
In another bowl, beat the softened cream cheese and 1/2 cup of sugar into the lemon zest mixture using an electric mixer until smooth and creamy. Spread this lemony cream cheese mixture evenly over the layer of crescent roll dough in the prepared baking dish.

4. Add the Top Layer of Crescent Roll Dough
Unroll the second can of crescent roll dough and layer it over the cream cheese mixture. Gently stretch the dough to the edges of the dish to cover the cream cheese completely.

5. Brush with Butter and Sprinkle with Sugar
Brush the melted butter over the top layer of crescent roll dough. In a small bowl, mix the remaining lemon zest and 3 tablespoons of sugar together, then sprinkle this lemon-sugar mixture over the buttered dough. This will create a deliciously sweet and tangy topping as it bakes.

6. Bake and Cool
Bake in the preheated oven until the top is golden brown, about 30 minutes. Allow the bars to cool for about 20 minutes. This cooling step helps to set the layers and makes it easier to cut them into squares.

7. Chill Before Serving
Lift the dessert from the baking dish using the foil and transfer it to a cutting board. Cut into squares while still on the foil, then return the dessert to the baking dish. Refrigerate until chilled, at least 1 hour, to let the flavors meld and the bars firm up.