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There is nothing quite like the refreshing burst of citrus combined with creamy indulgence, and that is exactly what the Key Lime Pie Lasagna Recipe delivers in every delightful spoonful. This layered dessert effortlessly combines a buttery nutty crust, a luscious cream cheese filling, and a tangy yet silky key lime custard, all topped with clouds of whipped topping and a sprinkle of crunchy nuts. It’s a vibrant, no-bake flavor sensation that’s perfect for sharing with loved ones or celebrating any occasion that calls for a sweet, zingy treat.

Ingredients You’ll Need
Getting started with this Key Lime Pie Lasagna Recipe means gathering just a handful of simple but wonderfully complementary ingredients. Each one plays a crucial role, from building a sturdy yet tender crust to creating creamy layers that balance tartness and sweetness.
- 1 cup flour: Provides the base structure for the crust, giving it just the right chewiness.
- 2 tablespoons sugar: Sweetens the crust just enough to enhance, without overpowering.
- 1/2 cup butter, melted: Brings richness and helps bind the crust ingredients together perfectly.
- 1/2 cup macadamia nuts, finely chopped: Adds a delightful crunch and a buttery flavor; cashews or pecans work beautifully as alternatives.
- 6 oz cream cheese, softened: The creamy heart of the cheesecake layer, offering smoothness and tang.
- 2/3 cup powdered sugar: Sweetens the cream cheese layer while keeping it light and fluffy.
- 2/3 cup whipped topping: Lightens the cream cheese mixture for that lovely melt-in-your-mouth texture.
- 1/2 teaspoon vanilla extract: Enhances the overall flavor profile with its warm, familiar notes.
- 2 tablespoons cornstarch: Thickens the key lime custard to a luscious consistency.
- 3/4 cup key lime juice: The star ingredient that gives the dessert its iconic tang and brightness.
- 3/4 cup sugar: Balances the tartness of the key lime juice in the custard layer.
- 4 egg yolks, slightly beaten: Adds richness and helps the custard set perfectly.
- 5 tablespoons butter: Provides velvety smoothness and a subtle richness in the custard.
- Green food coloring (optional): Gives the key lime layer a festive, vibrant hue.
- 1 1/2 cups whipped topping: Folded into the custard for lightness and creamy texture.
- 1 cup whipped topping (for topping): Final layer of fluffy sweetness to crown the dessert.
- 1/3 cup chopped nuts (optional, for garnish): Adds an appealing crunch and visual contrast on top.
How to Make Key Lime Pie Lasagna Recipe
Step 1: Prepare the Crust
Begin by preheating your oven to 350°F (175°C) and lightly spraying the bottom of a 9×9-inch baking dish. Combine flour, sugar, melted butter, and finely chopped nuts in a mixing bowl. Stir until the mixture becomes crumbly and well blended. Press this mixture firmly into the base of the baking dish to form an even crust. Bake it for 20 minutes until golden and fragrant, then allow it to cool completely before moving on. This crust is the foundation that brings a satisfying texture and a rich nutty flavor to your Key Lime Pie Lasagna Recipe.
Step 2: Make the Cream Cheese Layer
Now it’s time to create the luscious, creamy layer that makes this dessert irresistible. Beat the softened cream cheese and powdered sugar together until smooth and fluffy. Gently fold in 1 cup of whipped topping and stir in the vanilla extract. When your crust is fully cooled, spread this mixture evenly on top, smoothing it out with a spatula. Set the dish in the fridge to chill while you prepare the tangy key lime layer. This step adds a rich, velvety middle that balances tart and sweet brilliantly.
Step 3: Cook the Key Lime Custard
In a medium saucepan, whisk together sugar and cornstarch to ensure no lumps. Slowly add the key lime juice and beaten egg yolks, stirring constantly. Add butter and gently cook over medium-low heat, stirring frequently until the mixture thickens enough to coat the back of a spoon—this is crucial for that classic custard texture. Remove from heat, cover with plastic wrap to prevent a skin from forming, and refrigerate for at least two hours until completely cool. Once chilled, if desired, add a few drops of green food coloring for that signature pastel color, and fold in 1 1/2 cups of whipped topping to lighten the custard beautifully. Spread this key lime custard evenly over the cream cheese layer for a stunning contrast of flavors and textures.
Step 4: Add the Whipped Topping and Nuts
Spread 1 cup of whipped topping over the key lime layer, creating a delicate, fluffy finish. For an extra touch of crunch and visual appeal, sprinkle chopped nuts on top if you wish. This final creamy layer balances all the tangy and nutty notes perfectly, ensuring every bite is just right.
Step 5: Chill to Set
Refrigerate your Key Lime Pie Lasagna Recipe for at least 4 to 5 hours, or ideally overnight, to allow each layer to set and meld together beautifully. This cooling period is essential for achieving that sliceable, luscious texture. If you want to enjoy it frozen, you can pop it in the freezer as well; it will thaw quickly and maintain its creamy goodness, making it a versatile dessert for any occasion.
How to Serve Key Lime Pie Lasagna Recipe

Garnishes
To make your Key Lime Pie Lasagna Recipe even more eye-catching and delicious, consider adding a few thoughtful garnishes. Fresh lime zest or thin slices of key lime offer an elegant burst of citrus aroma. A light dusting of finely chopped nuts or a sprinkle of toasted coconut can add texture and complement the flavors beautifully. These small touches enhance the presentation and invite everyone to dig in with anticipation.
Side Dishes
This dessert shines brilliantly on its own, but for a complete experience, pair it with simple accompaniments like fresh berries, lightly sweetened fruit compote, or a crisp mint leaf garnish. These fresh, light accompaniments enhance the tangy brightness of the key lime without competing with it. A cup of fragrant herbal tea or a fizzy lime soda also pairs delightfully alongside the creamy layers.
Creative Ways to Present
For a fun twist on serving, try layering individual portions in clear glasses or mason jars for a charming, portable presentation. You can also create a Key Lime Pie Lasagna parfait by alternating mini layers of crust, cream cheese, and key lime custard topped with whipped cream and nuts. This not only looks magical but gives guests a personal share of this wonderful dessert to savor at their leisure.
Make Ahead and Storage
Storing Leftovers
Leftover Key Lime Pie Lasagna Recipe keeps wonderfully in the refrigerator, stored in an airtight container or covered tightly with plastic wrap to prevent it from drying out or absorbing other odors. It will stay fresh and delicious for up to 3-4 days, making it an ideal make-ahead dessert option for busy days.
Freezing
If you want to enjoy your Key Lime Pie Lasagna Recipe at a later date, freezing is a fantastic option. Wrap it securely in plastic wrap and then aluminum foil to protect against freezer burn. When you’re ready to indulge, thaw it in the fridge overnight. The texture remains creamy and the flavors stay beautifully vibrant, just like the day you made it.
Reheating
This dessert is best served cold or slightly chilled, so reheating isn’t necessary. If you prefer a softer texture after freezing, simply allow it to sit at room temperature for 15-20 minutes before serving. This brings out the silky smooth consistency without affecting the layers’ structure.
FAQs
Can I make the crust without nuts?
Absolutely! While nuts add a lovely crunch and flavor, you can simply omit them and follow the recipe as usual. The crust will still be deliciously buttery and crisp.
Is there a substitute for key lime juice?
If key limes are hard to find, you can use fresh regular lime juice as a substitute. It has a slightly different tartness but still delivers that citrusy punch that makes this dessert shine.
Can I use homemade whipped cream instead of whipped topping?
Yes! Homemade whipped cream works beautifully and adds a fresh, creamy taste. Just be sure to whip it to stiff peaks for the best texture and folding ease.
How long does the Key Lime Pie Lasagna Recipe take to set?
The best results come from chilling the assembled lasagna for at least 4-5 hours or overnight. This allows the layers to firm up properly, making cutting and serving easier.
Is this dessert gluten-free?
The traditional version uses regular flour in the crust, but you can substitute a gluten-free flour blend to make the dessert gluten-free without sacrificing texture or flavor.
Final Thoughts
If you’re looking for a dessert that’s both stunning and bursting with vibrant flavor, the Key Lime Pie Lasagna Recipe is a must-try. Its layers of creamy, tangy, and crunchy elements come together to create an unforgettable treat that’s as fun to make as it is to eat. Trust me, once you share this with friends and family, it will become your go-to recipe for every warm-weather gathering or anytime you crave something bright and indulgent.
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Key Lime Pie Lasagna Recipe
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 7 hours
- Yield: 9 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
This Key Lime Pie Lasagna is a delightful layered dessert combining a nutty buttery crust, creamy cheesecake layer, and tangy key lime custard, topped with light whipped cream and optional chopped nuts. Perfect for warm weather, it is chilled to set into a luscious, no-bake style treat with bright citrus flavor and creamy textures.
Ingredients
Crust
- 1 cup flour
- 2 tablespoons sugar
- 1/2 cup butter, melted
- 1/2 cup macadamia nuts, finely chopped (or substitute with cashews or pecans)
Cheesecake Layer
- 6 oz cream cheese, softened
- 2/3 cup powdered sugar
- 1 cup whipped topping
- 1/2 teaspoon vanilla extract
Key Lime Layer
- 2 tablespoons cornstarch
- 3/4 cup key lime juice
- 3/4 cup sugar
- 4 egg yolks, slightly beaten
- 5 tablespoons butter
- Green food coloring (optional)
- 1 1/2 cups whipped topping
Topping
- 1 cup whipped topping
- 1/3 cup chopped nuts (optional, for garnish)
Instructions
- Prepare the Crust: Preheat the oven to 350°F (175°C) and spray the bottom of a 9×9-inch baking dish. In a bowl, combine the flour, sugar, melted butter, and finely chopped nuts. Stir until the mixture is well combined and crumbly. Press the mixture into the bottom of the baking dish to form the crust. Bake for 20 minutes, then remove from the oven and allow to cool completely.
- Make the Cheesecake Layer: In a mixing bowl, beat the cream cheese and powdered sugar until smooth and creamy. Fold in 1 cup of whipped topping and vanilla extract, then spread the mixture evenly over the cooled crust. Place the dish in the fridge to set while you make the key lime layer.
- Prepare the Key Lime Layer: In a medium saucepan, whisk together the sugar and cornstarch. Stir in the key lime juice and slightly beaten egg yolks. Add the butter and bring the mixture to a gentle simmer over medium-low heat, stirring constantly until it thickens enough to coat the back of a spoon. Remove from heat, cover with plastic wrap, and refrigerate for at least 2 hours to cool completely. Once cooled, stir in green food coloring (if using), then fold in 1 1/2 cups of whipped topping. Spread this key lime mixture evenly over the cheesecake layer.
- Add the Topping: Spread 1 cup of whipped topping over the key lime layer. Sprinkle chopped nuts on top if desired for garnish.
- Chill and Serve: Refrigerate the assembled dessert for at least 4-5 hours, or preferably overnight, to allow the layers to set completely. You can also freeze it to serve as a frozen dessert; it will defrost quickly and maintain its creamy texture.
Notes
- Substitute macadamia nuts with cashews or pecans if preferred or unavailable.
- Use fresh key lime juice for the brightest flavor or bottled if necessary.
- The green food coloring is optional and only for visual effect.
- Refrigeration time is critical for the dessert to properly set.
- This dessert can be served chilled or slightly frozen as a refreshing cold treat.

