If you are looking for an appetizer that truly wows without feeling fussy, the Smoked Salmon Avocado Mille-Feuille is an elegant choice that brightens any occasion. This dish captures the iconic layered look of a French mille-feuille but transforms it into a savory masterpiece with crisp, golden puff pastry, silky avocado cream, and tender smoked salmon. Each bite delivers a brilliant combination of textures and refreshing flavors that dance on your palate, proving that sophisticated doesn’t have to mean complicated in the kitchen.

Ingredients You’ll Need
What makes the Smoked Salmon Avocado Mille-Feuille really stand out is the simplicity and quality of its ingredients. Each component plays a crucial role in building flavor and contrast, from the flaky pastry to the luscious avocado and vibrant herbs.
- Puff pastry sheets: Use pre-rolled for ease, they provide that unmistakable flaky crunch that forms the framework.
- Ripe avocados: The creamy base that smooths out the layers with gentle richness.
- Fresh lemon juice: Brightens the avocado cream and keeps it from browning.
- Dill: Adds a fragrant herbal note that complements the salmon perfectly.
- Smoked salmon slices: Delicate, smoky, and tender, they bring the star seafood element into every bite.
- Microgreens: For a fresh, peppery garnish that adds vibrant color.
- Lemon-infused olive oil: A subtle drizzle that enhances the dish’s brightness and depth.
- Salt and pepper: To season the avocado cream just right.
How to Make Smoked Salmon Avocado Mille-Feuille
Step 1: Bake the Puff Pastry Rectangles
Start by preheating your oven to 400°F (200°C). Roll out the puff pastry sheet on a lightly floured surface and slice it into even rectangles—aim for about 3 by 4 inches each. Place them on a parchment-lined baking tray, prick gently with a fork to prevent excessive puffing, and bake until they’re golden and crisp, about 12 to 15 minutes. Let them cool completely; this will give you a sturdy, flaky base for your mille-feuille layers.
Step 2: Prepare the Avocado Cream
While the pastry cools, scoop the avocado flesh into a bowl. Add a generous squeeze of fresh lemon juice, a pinch of salt and pepper, and finely chopped dill. Mash and stir until silky smooth but still vibrant with small flecks of dill throughout—this creamy layer is one of the heartbeats of your Smoked Salmon Avocado Mille-Feuille.
Step 3: Assemble the Layers
To build your mille-feuille, start with one pastry rectangle, spread a thin but generous layer of avocado cream over it, then arrange delicate, slightly folded slices of smoked salmon on top. Repeat this layering once more before finishing with a top pastry layer. Press gently to keep everything in place but not so hard that you lose the distinct layers.
Step 4: Final Touches
Before serving, drizzle a little lemon-infused olive oil over each mini mille-feuille and sprinkle microgreens on top for a fresh, picturesque finish. This simple step elevates the flavor profile and adds an irresistible brightness that ties all the elements together.
How to Serve Smoked Salmon Avocado Mille-Feuille

Garnishes
Keep garnishes light and fresh to complement the delicate flavors. Microgreens add a pop of green and a mild peppery note, while thin lemon zest strips or edible flowers can brighten the presentation further. A light sprinkle of flaky sea salt just before serving can enhance texture and deepen flavor.
Side Dishes
The Smoked Salmon Avocado Mille-Feuille pairs wonderfully with crisp, lightly dressed salads featuring ingredients like fennel, cucumber, or radish, which add crunch and freshness. Alternatively, a chilled glass of sparkling wine or a bright, citrusy white wine creates an excellent balance to the creamy richness of the dish.
Creative Ways to Present
If you’re entertaining, consider serving the mille-feuille as individual portions on elegant small plates or slate boards for that restaurant-quality vibe. Layer smaller squares or even round shapes for a playful twist. Arranged alongside lemon wedges and a few herb sprigs, they become mini edible works of art that your guests will be eager to taste.
Make Ahead and Storage
Storing Leftovers
If you have any leftovers, carefully wrap them in plastic wrap or place them in an airtight container. Store in the fridge to maintain freshness for up to 24 hours since the puff pastry will gradually lose its crispness, and avocado can discolor.
Freezing
This dish is best enjoyed fresh, so freezing is not recommended due to the delicate texture of both the puff pastry and avocado cream. The layers will lose their integrity and freshness once thawed.
Reheating
Since puff pastry is meant to be crisp, reheating after assembly is tricky. If needed, briefly warm the puff pastry rectangles alone in a low oven to restore some crunch before assembling the layers fresh. Avoid microwaving to prevent sogginess.
FAQs
Can I use regular salmon instead of smoked salmon?
The smoky flavor is a signature element in the Smoked Salmon Avocado Mille-Feuille, but if you prefer, lightly cooked or cured salmon can be used. Just keep in mind that the flavor profile will be milder and less intense.
Is there a substitute for dill?
If dill isn’t available, fresh chives or tarragon offer herbal notes that complement the avocado and salmon nicely. Avoid strong herbs that could overpower the delicate balance.
How do I keep the avocado cream from browning?
Mixing in lemon juice helps prevent browning, and assembling the dish close to serving time ensures the avocado remains bright and fresh looking.
Can I make this dish vegan?
To create a vegan version, replace smoked salmon with thinly sliced roasted beetroot or smoked carrot ribbons, and substitute the avocado cream with a cashew-based spread using lemon and herbs.
What type of puff pastry works best?
A classic all-butter puff pastry is ideal for its rich flavor and flakiness which pairs perfectly with the creamy avocado and smoked salmon layers.
Final Thoughts
There’s something truly special about the Smoked Salmon Avocado Mille-Feuille that makes any meal feel like an occasion. Its stunning layers, fresh flavors, and decadent textures come together in a dish that’s as delightful to make as it is to eat. If you want to impress your guests or just treat yourself to a refined and delicious starter, this recipe is absolutley worth trying. Go ahead and dive into this delicious world of layered perfection—you won’t regret it!