Line a 9×9-inch baking dish with parchment paper, including up the sides of the dish.
In a medium bowl, combine Oreo crumbs and melted butter. Stir until fully incorporated with no dry spots.
Press the crumb mixture firmly into the bottom of the lined baking dish. Place in the refrigerator to chill while preparing the filling.
In a large bowl, beat the cream cheese using a hand mixer on medium speed until creamy.
Add confectioners' sugar, vanilla, and lemon juice. Beat for about 3 minutes until creamy and smooth, with no lumps remaining.
Gently fold in 2 cups of whipped topping using a spatula.
Remove the crust from the refrigerator and spread half of the cream cheese mixture over the crust.
To the remaining cream cheese mixture, fold in ¼ cup of the strawberry Jell-o mix. Spread this mixture over the first layer of cream cheese mixture.
Place in the refrigerator to chill for 1 hour, up to overnight.
Before serving, top with whipped topping.
Garnish with chocolate curls and dehydrated strawberries (optional).