Preheat your oven to 350°F (175°C). Grease the 9x13 inch baking dish.
In a large mixing bowl, combine the cake mix, eggs, and water. Beat with an electric mixer for about 2 minutes until well combined.
Pour the batter into the prepared baking dish and bake for 30 minutes, or until a toothpick inserted in the center comes out clean.
Remove the cake from the oven and allow it to cool for about 10 minutes. Using a toothpick or skewer, poke holes all over the top of the cake, about 1 inch apart.
In a small saucepan, combine the strawberry gelatin powder and the sweetened condensed milk over low heat. Stir until the gelatin is fully dissolved.
Pour the gelatin mixture evenly over the cake, making sure it fills the holes.
Cover the cake with plastic wrap and refrigerate for at least 2 hours to allow the gelatin to set.
Once chilled, spread the whipped topping evenly over the top of the cake.
In a bowl, mix the crushed cookies with the melted butter until combined and crumbly. Sprinkle the mixture evenly over the whipped topping.
Decorate the top with the diced fresh strawberries.
Slice and serve the cake cold. Enjoy!