• Spray a 9 x 13-inch baking dish lightly with nonstick cooking spray, and set aside.

Prepare the Lime Jello

• Combine boiling water and lime jello in a medium-size mixing bowl.
• Whisk until the jello powder is completely dissolved.
• Cool for 10 minutes.

Beat the Cream Cheese

• Add cream cheese to a stand mixer fitted with a paddle attachment.
• Beat cream cheese until smooth, about 2 minutes, and scrape down the sides of the bowl with a spatula to ensure no lumps remain.

Combine the Ingredients

• Add the cooled jello mixture to the cream cheese and mix on low until combined.
• Pour in the 7-Up and continue to mix until very few lumps remain.
• Add crushed pineapple and mix until combined.
• Fold in whipped topping until smooth.
• Pour the jello mixture into the prepared baking dish.

Chill the Jello Salad

• Cover with plastic wrap and chill in the refrigerator overnight or for at least 4 hours.
• Top with whipped cream and maraschino cherries, if liked, before serving.