This savory mushroom leeks galette is a delicious way to pack wholesome, nutrient-dense ingredients into a crowd-pleasing dish. With its flaky, golden crust and hearty, umami-rich filling of sautéed leeks, mushrooms, and sweet peas, each bite offers incredible texture and balanced flavor. Whether you’re looking for a weeknight dinner, a light lunch, or a sharable appetizer, this galette delivers the perfect combination of indulgence and health benefits.

We developed this galette recipe to showcase how easy it can be to create a healthy meal without sacrificing flavor. After testing over half a dozen variations, we discovered the ideal method to maximize savory notes, while keeping every ingredient light and nutritious. This dish fits into a range of diets and makes it effortless to enjoy seasonal ingredients in a whole new way.

Why This Savory Mushroom Leeks Galette Is Good for You

Rich in vitamins: The leeks and mushrooms provide essential nutrients like vitamin C, vitamin K, and several B vitamins.
High in fiber: With plenty of fiber from the veggies and peas, this galette supports healthy digestion.
Low in added sugars: This recipe is completely savory and free from refined sugars, supporting balanced blood sugar levels.
Perfect for vegetarians: With the umami-packed mushroom-leek filling, this dish satisfies without any meat.
Customizable for many diets: With simple swaps, this galette can work for vegan, keto, or gluten-free lifestyles (read more below).

Wholesome Ingredients for This Savory Mushroom Leeks Galette

What makes this dish as nutritious as it is delicious? Let’s take a closer look at the key ingredients that deliver flavor and health benefits.

Mushrooms: These are the star of the filling, offering a meaty texture and deep umami flavor. They’re also an excellent source of antioxidants, selenium, and immune-boosting properties. Opt for cremini, shiitake, or a mix of wild mushrooms for variety.
Leeks: Mild but flavorful, leeks contribute a subtle sweetness to balance the earthiness of mushrooms. They’re high in prebiotics, promoting gut health and aiding nutrient absorption.
Nutritional Yeast: This dairy-free ingredient provides a cheesy, nutty depth of flavor while being rich in B12 vitamins—perfect for plant-based diets. It’s a great way to enhance flavor without adding excess fat.
Extra Virgin Olive Oil: This heart-healthy fat not only assists in sautéing but also provides anti-inflammatory properties and antioxidants that support overall health.

For substitutions, you can try shallots instead of leeks or swap the pie dough with a store-bought gluten-free crust if needed.

Savory Mushroom Leeks Galette Recipe Details

Servings: 8 slices
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes

Ingredients for Savory Mushroom Leeks Galette

4 tablespoons extra virgin olive oil
1 large leek (or two medium leeks, white parts only, finely chopped, about 3 cups)
Kosher salt and black pepper
1/2 teaspoon dried red pepper flakes
1 pound mushrooms (any kind, stemmed, cleaned, and roughly chopped, about 7 cups)
3 fresh thyme sprigs, leaves only
1/3 cup frozen peas
9-inch pie dough round (store-bought is fine)
1 tablespoon nutritional yeast
1 large egg (whisked)
Flaky sea salt for sprinkling

How to Make Savory Mushroom Leeks Galette

Preheat your oven to 425 degrees F and line a sheet pan with parchment paper.
In a large skillet, heat 3 tablespoons of olive oil over medium heat. Add the leeks, salt, pepper, and red pepper flakes. Cook for about 4 minutes, stirring occasionally, until the leeks become soft and fragrant.
Push the leeks to the edges of the skillet and add the remaining 1 tablespoon of olive oil and the mushrooms to the center. Cook for about 10 minutes, stirring occasionally, until the mushrooms release their moisture and become deeply browned. Keep the leeks on the outer edges during this process.
Stir in the thyme leaves and frozen peas, cooking for 1 additional minute to combine the ingredients together. Set the filling aside and allow it to cool slightly.
Meanwhile, roll out the pie dough and place it on the prepared sheet pan. Sprinkle the nutritional yeast evenly over the dough, pressing lightly to ensure it adheres.
Spoon the mushroom-leek mixture onto the center of the dough, spreading it evenly while leaving a 1-inch border around the edges. Fold the edges over the filling, overlapping sections as you go to create a rustic crust.
Brush the crust with the whisked egg and sprinkle with flaky sea salt for added crunch and flavor.
Bake in the oven for 20-25 minutes, or until the crust is golden brown and the filling is bubbly and aromatic. Serve warm and enjoy!

How to Customize This Savory Mushroom Leeks Galette for Your Diet

Vegan: Replace the egg wash with a mixture of unsweetened almond milk and a splash of olive oil. Use a vegan pie dough and ensure that the nutritional yeast is free from any non-vegan additives.
Gluten-Free: Swap the pie dough with a store-bought or homemade gluten-free crust. Many brands now offer gluten-free pastry options that are just as flaky and delicious.
Low-Carb/Keto: Use an almond flour-based crust or cauliflower crust to significantly reduce the carb count.
Nut-Free: All presented ingredients are nut-free, but double-check any store-bought crusts for cross-contamination warnings.

Nutritionist-Approved Tips for Savory Mushroom Leeks Galette

Prep ahead: You can make the filling the day before and store it in an airtight container in the fridge. This saves time on busy weeknights.
Perfect the crust: To prevent sogginess, consider blind-baking the crust for 5-7 minutes before adding the filling.
Use fresh herbs: While dried thyme works, fresh thyme adds unparalleled fragrance and brightness to this dish.
Reheat gently: Warm leftover slices in a 350 F oven for 5-8 minutes; this keeps the crust crisp rather than soggy if microwaved.
Make it personal: Add your favorite vegetables like spinach, zucchini, or cherry tomatoes to the filling to incorporate your own seasonal touch.

Savory Mushroom Leeks Galette FAQs

Can I make this galette ahead of time?

Yes! You can prepare the filling up to a day in advance and store it in the fridge. Assemble and bake the galette just before serving for the best texture.

Is this an easy mushroom galette recipe for beginners?

Absolutely! The store-bought dough simplifies the process, making this a perfect recipe for home cooks who want impressive results with minimal effort.

How do I store leftover mushroom leek tart?

Keep leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven for the best texture.

Can I use puff pastry instead of pie dough?

Yes, puff pastry works wonderfully! It adds even more flakiness to this leek and mushroom pastry.

Is this a healthy savory option?

Yes, this healthy savory galette is a fantastic way to enjoy indulgence without guilt. It’s packed with fiber, vitamins, and plant-based protein.

We’re confident you’ll love how this savory mushroom leeks galette brings health and flavor together in perfect harmony. What dietary swaps do you think you’d try? Let us know in the comments below!