Shamrock Lasagna

Shamrock Lasagna is a showstopping, no-bake dessert that’s as fun to make as it is to eat! With layers of crushed Oreo crust, creamy cheesecake filling, and a vibrant mint pudding topping, this festive treat brings all the luck of the Irish to your table. It’s the perfect dessert for St. Patrick’s Day celebrations, spring potlucks, or any time you want to serve something that makes everyone smile.

Layered Shamrock Lasagna dessert with chocolate Oreo crust, white cream cheese middle layer, and bright green mint pudding top layer

Why You’ll Love This Recipe

  • No-bake ease – Just one quick crust bake, then it’s all assembly and chilling
  • Crowd-pleaser guaranteed – Chocolate, cream cheese, and mint? Yes, please!
  • Make-ahead magic – Perfect for busy hosts who want to prep the day before
  • Instagram-worthy – That gorgeous green layer makes everyone do a double-take
  • Kid-approved fun – Little ones love helping crush the cookies and watching the layers come together
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Layered Shamrock Lasagna dessert with chocolate Oreo crust, white cream cheese middle layer, and bright green mint pudding top layer

Shamrock Lasagna


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  • Author: Lila
  • Total Time: 5–7 hours
  • Yield: One 9×13-inch pan

Description

Make this easy Shamrock Lasagna for St. Patrick’s Day! Layered with Oreo crust, cream cheese, and mint pudding. No-bake, make-ahead, and always a crowd-pleaser.


Ingredients

Crust Layer

  • 36 chocolate sandwich cookies (like Oreos), finely crushed
  • 1 stick (½ cup) unsalted butter, melted

Cream Cheese Layer

  • 8 ounces cream cheese, softened to room temperature
  • 1 cup powdered sugar
  • 1 tub (about 8 ounces) whipped topping, thawed (like Cool Whip)

Pudding Layer

  • 3 boxes (3.4 ounces each) instant cheesecake pudding mix
  • 3 cups cold milk (whole or 2% works best)
  • 1 teaspoon mint extract
  • Green gel food coloring (to desired shade)
  • Remaining tub of whipped topping (about 8 ounces)

Garnish / Toppings (optional)

  • Extra Oreo crumbs
  • Whipped topping
  • Maraschino cherries
  • Green sprinkles


Instructions

Step 1: Preheat Your Oven

Preheat the oven to 375°F (190°C). This gives you time to prep your crust while it’s heating up.

Step 2: Crush and Mix the Crust

Place your chocolate sandwich cookies in a food processor and pulse until they’re fine crumbs, or put them in a zip-top bag and crush them with a rolling pin (great for stress relief!).

In a large bowl, combine those cookie crumbs with the melted butter and stir until the mixture looks like wet sand and holds together when you squeeze it.

Step 3: Press the Crust into the Pan

Pour the cookie mixture into your 9×13-inch baking dish and press it firmly into the bottom and slightly up the sides. Use the bottom of a measuring cup or glass to really pack it down evenly. You want it nice and compact so it doesn’t crumble when you cut slices later.

Step 4: Bake and Cool the Crust

Bake for 8–10 minutes until the crust feels set and smells toasty. Don’t skip this step – it makes all the difference in texture!

Remove from the oven and let it cool completely at room temperature. This takes about 30 minutes, so be patient.

Step 5: Whip Up the Cream Cheese Layer

In a mixing bowl, beat the softened cream cheese and powdered sugar together with an electric mixer until smooth and fluffy, about 2–3 minutes. Add the first tub of whipped topping and beat until everything is well blended and creamy with no lumps.

Step 6: Spread the Cream Cheese Layer

Spread this gorgeous cream cheese mixture evenly over your cooled crust, using a rubber spatula to smooth the top. Make sure it reaches all the corners and edges.

Step 7: Make the Mint Pudding

In another large bowl, whisk together the instant pudding mix and cold milk vigorously for about 2 minutes. The pudding should thicken up nicely. Don’t rush this step – good whisking prevents lumps!

Step 8: Fold in Whipped Topping

Gently fold the remaining tub of whipped topping into the pudding mixture with a spatula until it’s smooth and well combined. This lightens the pudding and gives it that signature fluffy texture.

Step 9: Add the Magic – Mint and Color

Stir in the mint extract and add green gel food coloring a little at a time until you reach that perfect shamrock green. Start with just a few drops – you can always add more, but you can’t take it away! Mix well so the color is even throughout.

Step 10: Spread the Pudding Layer

Carefully spread the mint pudding layer over the cream cheese layer, smoothing it out gently so you don’t disturb the layer below. Take your time and use a light touch.

Step 11: Chill to Perfection

Cover the dish with plastic wrap and refrigerate for at least 4–6 hours, or overnight if you can wait. This chilling time lets all the layers set up properly and the flavors meld together beautifully.

Step 12: Garnish and Serve

Before serving, sprinkle extra Oreo crumbs on top, add dollops of whipped topping, place a few maraschino cherries, and scatter green sprinkles for that festive finish.

Step 13: Slice with Care

Use a sharp knife to cut clean squares. Wipe the knife between cuts for the prettiest slices that show off all those gorgeous layers.

Notes

  • Chill your mixing bowl and whisk before making the pudding layer for even better thickening
  • Don’t overmix the whipped topping once it’s added – gentle folding keeps it fluffy
  • Line your pan with parchment paper with overhanging edges for easy lifting and cleaner cutting
  • Run your knife under hot water between cuts for bakery-perfect slices
  • Make mini versions in individual cups for portion control and easy serving at parties
  • Prep Time: 30 minutes
  • Cook Time: 10 minutes (crust only) + Chill Time: 4–6 hours
  • Category: Dessert
  • Method: No-bake
  • Cuisine: American

Ingredients You’ll Need

Crust Layer

  • 36 chocolate sandwich cookies (like Oreos), finely crushed
  • 1 stick (½ cup) unsalted butter, melted

Cream Cheese Layer

  • 8 ounces cream cheese, softened to room temperature
  • 1 cup powdered sugar
  • 1 tub (about 8 ounces) whipped topping, thawed (like Cool Whip)

Pudding Layer

  • 3 boxes (3.4 ounces each) instant cheesecake pudding mix
  • 3 cups cold milk (whole or 2% works best)
  • 1 teaspoon mint extract
  • Green gel food coloring (to desired shade)
  • Remaining tub of whipped topping (about 8 ounces)

Garnish / Toppings (optional)

  • Extra Oreo crumbs
  • Whipped topping
  • Maraschino cherries
  • Green sprinkles

Note: Make sure your cream cheese is truly softened – leave it out for about an hour before starting. Cold cream cheese will give you lumps!

Why These Ingredients Work

The chocolate cookie crust provides that essential crunch and deep chocolate flavor that balances the sweet, creamy layers above. When you mix those crushed cookies with melted butter, you’re creating a base that holds together beautifully and tastes like the world’s best cookie crust.

The cream cheese layer is where the magic starts – it’s rich, tangy, and slightly sweet, acting as a bridge between the chocolate below and the mint above. Powdered sugar dissolves smoothly into the cream cheese without any graininess, and the whipped topping keeps everything light and fluffy instead of dense.

The pudding layer is the star of the show, giving you that signature cheesecake flavor with a hint of refreshing mint. Instant pudding sets up quickly and reliably, while the mint extract adds that cool, fresh taste that screams springtime. The gel food coloring creates that vibrant shamrock green without watering down your pudding, and folding in more whipped topping makes the final layer cloud-like and dreamy.

Essential Tools and Equipment

  • 9×13-inch baking dish
  • Food processor or rolling pin and zip-top bag (for crushing cookies)
  • Large mixing bowls (at least 2)
  • Electric hand mixer or stand mixer
  • Rubber spatula
  • Whisk
  • Sharp knife for slicing

Step-by-Step Instructions

Step 1: Preheat Your Oven

Preheat the oven to 375°F (190°C). This gives you time to prep your crust while it’s heating up.

Step 2: Crush and Mix the Crust

Place your chocolate sandwich cookies in a food processor and pulse until they’re fine crumbs, or put them in a zip-top bag and crush them with a rolling pin (great for stress relief!).

In a large bowl, combine those cookie crumbs with the melted butter and stir until the mixture looks like wet sand and holds together when you squeeze it.

Step 3: Press the Crust into the Pan

Pour the cookie mixture into your 9×13-inch baking dish and press it firmly into the bottom and slightly up the sides. Use the bottom of a measuring cup or glass to really pack it down evenly. You want it nice and compact so it doesn’t crumble when you cut slices later.

Step 4: Bake and Cool the Crust

Bake for 8–10 minutes until the crust feels set and smells toasty. Don’t skip this step – it makes all the difference in texture!

Remove from the oven and let it cool completely at room temperature. This takes about 30 minutes, so be patient.

Step 5: Whip Up the Cream Cheese Layer

In a mixing bowl, beat the softened cream cheese and powdered sugar together with an electric mixer until smooth and fluffy, about 2–3 minutes. Add the first tub of whipped topping and beat until everything is well blended and creamy with no lumps.

Step 6: Spread the Cream Cheese Layer

Spread this gorgeous cream cheese mixture evenly over your cooled crust, using a rubber spatula to smooth the top. Make sure it reaches all the corners and edges.

Step 7: Make the Mint Pudding

In another large bowl, whisk together the instant pudding mix and cold milk vigorously for about 2 minutes. The pudding should thicken up nicely. Don’t rush this step – good whisking prevents lumps!

Step 8: Fold in Whipped Topping

Gently fold the remaining tub of whipped topping into the pudding mixture with a spatula until it’s smooth and well combined. This lightens the pudding and gives it that signature fluffy texture.

Step 9: Add the Magic – Mint and Color

Stir in the mint extract and add green gel food coloring a little at a time until you reach that perfect shamrock green. Start with just a few drops – you can always add more, but you can’t take it away! Mix well so the color is even throughout.

Step 10: Spread the Pudding Layer

Carefully spread the mint pudding layer over the cream cheese layer, smoothing it out gently so you don’t disturb the layer below. Take your time and use a light touch.

Step 11: Chill to Perfection

Cover the dish with plastic wrap and refrigerate for at least 4–6 hours, or overnight if you can wait. This chilling time lets all the layers set up properly and the flavors meld together beautifully.

Step 12: Garnish and Serve

Before serving, sprinkle extra Oreo crumbs on top, add dollops of whipped topping, place a few maraschino cherries, and scatter green sprinkles for that festive finish.

Step 13: Slice with Care

Use a sharp knife to cut clean squares. Wipe the knife between cuts for the prettiest slices that show off all those gorgeous layers.

Layered Shamrock Lasagna dessert with chocolate Oreo crust, white cream cheese middle layer, and bright green mint pudding top layer

You Must Know

The absolute most important thing is letting that crust cool completely before adding the cream cheese layer. If you don’t, the butter in the crust will melt the cream cheese layer and you’ll end up with a soupy mess instead of distinct, beautiful layers.

Also, your milk must be cold when you mix the pudding – room temperature milk won’t activate the pudding mix properly, and you’ll have a runny disaster on your hands. Trust me on this one!

Personal Secret: Here’s my little trick that makes all the difference – after spreading each layer, give the pan a gentle tap on the counter a few times. This releases any air bubbles and helps the layers settle evenly.

Pro Tips & Cooking Hacks

  • Use gel food coloring instead of liquid – It gives you vibrant color without thinning your pudding layer
  • Chill your mixing bowl and whisk before making the pudding layer for even better thickening
  • Don’t overmix the whipped topping once it’s added – gentle folding keeps it fluffy
  • Line your pan with parchment paper with overhanging edges for easy lifting and cleaner cutting
  • Run your knife under hot water between cuts for bakery-perfect slices
  • Make mini versions in individual cups for portion control and easy serving at parties
  • Skip the mint extract if you have picky eaters – it’s still delicious as a chocolate-vanilla treat
  • Add a few drops of vanilla extract to the cream cheese layer for extra depth of flavor

Flavor Variations & Suggestions

If mint isn’t your thing, you can easily swap it for vanilla or almond extract instead. The dessert still tastes amazing with just a classic vanilla pudding flavor, and it’s perfect for people who aren’t fans of mint.

For a chocolate lover’s version, use chocolate pudding instead of cheesecake pudding and skip the food coloring for a triple chocolate experience. You could also try making it with different cookie crusts – graham crackers, vanilla wafers, or even Nutter Butters would all work beautifully.

If you want to make it extra special for adults, add a tablespoon of Irish cream liqueur to the cream cheese layer for a boozy twist. For a fun rainbow version, divide your pudding layer and color each portion differently, then swirl them together for a tie-dye effect. You can also add chocolate chips, crushed peppermint candies, or mini marshmallows between the layers for extra texture and surprise bites.

Make-Ahead Options

This is genuinely one of the best make-ahead desserts you’ll ever find. You can prepare the entire lasagna up to two days before you need it – in fact, it actually tastes better after sitting in the fridge overnight because the flavors have time to meld together and the layers become even more distinct. Just wait to add the final garnishes until right before serving so they look fresh and pretty.

If you want to get a head start, you can bake and cool the crust layer up to three days in advance and store it covered at room temperature. You can also make the cream cheese mixture a day ahead and keep it refrigerated in a covered bowl, then let it sit at room temperature for about 15 minutes before spreading to make it easier to work with. The pudding layer should be made fresh and spread immediately since pudding starts to set quickly once mixed.

What to Serve With Shamrock Lasagna

This dessert is rich and creamy, so it pairs wonderfully with a hot cup of Irish coffee or regular coffee to balance the sweetness. For a party spread, serve it alongside lighter desserts like fruit salad or sugar cookies so guests can choose their level of indulgence. It’s also delicious with a scoop of vanilla ice cream on the side, even though it seems like overkill – sometimes more is more!

For a full St. Patrick’s Day menu, serve it after a hearty meal of corned beef and cabbage, shepherd’s pie, or Irish stew. The cool, minty dessert is a refreshing finish to a warm, savory dinner. If you’re hosting a potluck, bring this as your contribution and watch it disappear – just make sure to snap a photo before people dig in because it won’t last long!

Layered Shamrock Lasagna dessert with chocolate Oreo crust, white cream cheese middle layer, and bright green mint pudding top layer

Allergy Information

This recipe contains several common allergens including dairy (cream cheese, milk, butter, whipped topping), wheat (in the cookies), and soy (often in cookies and whipped topping).

For a dairy-free version, you can substitute dairy-free cream cheese, plant-based milk, vegan butter, and coconut whipped cream, though the texture will be slightly different. For a gluten-free option, use gluten-free chocolate sandwich cookies for the crust – several brands make excellent versions that taste just like the original.

If you have concerns about food dyes, you can skip the green coloring entirely or use natural alternatives like spirulina powder or matcha, though the flavor will change slightly. Always check the labels on your instant pudding mix and whipped topping for specific allergen information, as formulations can vary by brand.

Storage & Reheating

Store leftover Shamrock Lasagna covered tightly with plastic wrap or aluminum foil in the refrigerator for up to 4 days. The layers hold up beautifully, though the crust may soften slightly after a few days – which some people actually prefer!

This is a no-bake, chilled dessert, so you’ll never reheat it. Always serve it cold, straight from the fridge. If you’re taking it to a party, keep it in a cooler with ice packs until serving time.

You can freeze individual slices wrapped tightly in plastic wrap and then in foil for up to 2 months. Let them thaw in the refrigerator overnight before serving. The texture of the whipped topping may change slightly after freezing, becoming a bit less fluffy, but it still tastes delicious.

Questions I Get Asked A Lot

Can I use homemade whipped cream instead of Cool Whip?

Absolutely! Just make sure it’s stabilized with a little powdered sugar and gelatin, or it might weep overnight. Heavy cream whipped to stiff peaks with 2 tablespoons of powdered sugar and 1 teaspoon of unflavored gelatin (dissolved in 1 tablespoon of water) will hold up beautifully in the fridge.

My pudding layer looks lumpy – what went wrong?

This usually happens when the milk isn’t cold enough or you didn’t whisk vigorously for the full 2 minutes. Next time, chill your bowl and whisk too! The pudding needs that energy to activate properly and thicken smoothly.

Can I make this without mint flavor?

Of course! Simply leave out the mint extract and you’ll have a delicious vanilla cheesecake lasagna. You can keep the green coloring for a fun look, or skip it entirely for a classic appearance. Some people add a teaspoon of vanilla extract instead for extra flavor.

How do I get clean, pretty slices?

The secret is a sharp knife and patience. Dip your knife in hot water, wipe it dry, and make one cut. Wipe the knife clean, dip in hot water again, and make the next cut. It seems fussy, but it’s worth it for those Instagram-worthy slices!

Can I use a different type of pudding mix?

Yes! Vanilla, white chocolate, or even pistachio pudding would all be delicious. Just keep the same quantity (three 3.4-ounce boxes) and follow the same instructions. Chocolate pudding makes it extra decadent if you’re a serious chocolate fan.

💬 Tried this recipe? Leave a comment and rating below! I’d love to hear how your Shamrock Lasagna turned out.

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