Preheat your oven to 350°F (175°C). In a mixing bowl, combine crushed pretzels, melted butter, and sugar, stirring until the pretzels are well-coated. Spread the mixture evenly into a greased 9x13 inch baking dish. Bake for 10 minutes, or until golden brown, then remove from the oven and allow to cool completely.

In a large mixing bowl, beat softened cream cheese and sugar together until smooth and creamy, about 2-3 minutes. Carefully fold in the whipped topping until fully incorporated. Spread the cream cheese mixture evenly over the cooled pretzel crust.

Prepare the strawberry Jello according to the package instructions. Allow the mixture to cool slightly before adding fresh strawberries.

Gently pour the cooled Jello over the cream cheese layer, ensuring it covers the cream cheese mixture completely.

Cover the dish and refrigerate for a minimum of 4 hours, preferably overnight, to allow the Jello to set.