Creating Summer Berry Jello Lasagna is simple and fun. Follow these straightforward steps to craft this delightful dessert:

1. Prepare the Base: In a bowl, combine graham cracker crumbs, melted butter, and granulated sugar. Mix until well combined.
2. Press the Mixture: Press the crumb mixture evenly into the bottom of a 9×13-inch dish to form the base.
3. Mix Cream Cheese Layer: In a separate mixing bowl, beat cream cheese and powdered sugar until smooth. Fold in the whipped topping until well combined.
4. Spread Cream Cheese Layer: Spread the cream cheese mixture evenly over the graham cracker crust.
5. Prepare Jello: In a large bowl, dissolve the strawberry Jello mix in 1 cup of boiling water. Stir for about 2 minutes until completely dissolved.
6. Add Berries: Add in 1 cup of sliced strawberries and 1 cup of blueberries into the dissolved Jello mixture.
7. Layer the Jello: Carefully pour the Jello mixture over the cream cheese layer in the dish.
8. Chill: Refrigerate for 30 minutes to set the Jello slightly.
9. Repeat with Raspberry Jello: With the first layer set, dissolve the raspberry Jello mix in another cup of boiling water. Stir for 2 minutes until completely dissolved.
10. Add Berries Again: Fold in the remaining berries, 1 cup of sliced strawberries, and 1 cup of blueberries into the raspberry Jello mixture.
11. Final Layer: Pour the raspberry Jello mixture over the strawberry layer in the dish.
12. Refrigerate Again: Cover the dish and refrigerate for at least 4 hours, or until fully set.
13. Serve: Once the Jello has set, slice into squares and serve chilled.

By following these steps, you’ll create an incredible dessert that showcases layers of deliciousness.