Let’s break down the process of making this Shamrock Lasagna into easy-to-follow steps. I’ll guide you through each stage, ensuring a stress-free and successful experience.

Step 1: Prepare the Oreo Crust. Preheat your oven to 375°F (190°C). In a large mixing bowl, combine the finely crushed Oreos and melted butter. Mix well with a fork until the mixture resembles wet sand.

Step 2: Press the Crust. Pour the Oreo mixture into the bottom of a 9×13 inch baking dish. Use the palm of your hand to firmly press the crust into all corners and sides of the dish, creating a flat, even layer.

Step 3: Bake the Crust. Bake the crust for 8-10 minutes. This helps to set the crust and prevent it from becoming soggy.

Step 4: Cool the Crust. Remove the crust from the oven and set it aside to cool completely to room temperature. This is crucial, as a warm crust will melt the subsequent layers.

Step 5: Prepare the Cream Cheese Layer. In a large mixing bowl, cream together the softened cream cheese, powdered sugar, and one tub of thawed whipped topping using an electric mixer. Mix until smooth and fully blended.

Step 6: Add the Cream Cheese Layer. Once the crust is completely cool, use a rubber spatula to spread the cream cheese mixture evenly over the crust.

Step 7: Prepare the Pudding Layer. In a separate large mixing bowl, blend the pudding mixes with the cold milk on low-medium speed until fully combined.

Step 8: Add Whipped Topping and Flavorings. Add the remaining tub of thawed whipped topping to the pudding mixture and blend again until smooth. Stir in the mint extract and the green gel food coloring, blending until the desired shade of green is achieved.

Step 9: Add the Pudding Layer. Carefully pour the green pudding mixture over the cream cheese layer and spread it evenly with a rubber spatula.

Step 10: Chill. Place the assembled lasagna in the refrigerator for at least 4-6 hours, or preferably overnight. This allows the layers to set up properly and the flavors to meld.

Step 11: Garnish and Serve. Before serving, garnish the top of the lasagna with extra Oreo crumbs. Cut into squares and garnish individual pieces with whipped topping, maraschino cherries, and green sprinkles.