Cretan Boureki from Chania: Zucchini, Potato & Cheese Gratin

Cretan Boureki is a zucchini and potato gratin from the city of Chania in Crete that’s loaded with all the rich Greek cheeses: feta, ricotta, and kefalotiri. It makes a delicious vegetarian meal and is a great option for entertaining because you can easily make it ahead of time. Eat it all on its own or with a nice salad and some hearty bread.

This is one of my favorite classic Cretan comfort dishes from my family’s hometown of Chania. It’s a casserole that transforms thinly sliced zucchini and potatoes into tender, creamy layers infused with herbs. Salty feta, creamy ricotta, and sharp kefalotyri melt throughout the vegetables, while the top becomes beautifully golden, creating a rustic dish that’s rich and delicious.

Why You’ll Love This Cretan Boureki

Beautiful, tender layers of Soft, mild zucchini.

Rich, creamy feta, ricotta, and kefalotyri.

What are the ingredients for Cretan Boureki from Chania?

Potatoes soften and become creamy during the long, slow bake, creating hearty layers that soak up the olive oil, cream, herb flavors, and cheeses.

Zucchini adds tender texture and delicate sweetness while absorbing the rich flavors surrounding each layer. Zucchini contains a lot of water. Salting it ahead of time and patting it dry is important for a rich, concentrated Boureki rather than a watery one.

Salt seasons the vegetables and helps draw excess moisture from the zucchini before assembling the Boureki.

Freshly ground black pepper adds subtle warmth and enhances the savory flavors.

Dried oregano brings earthy, aromatic flavor to the vegetables.

Extra virgin olive oil adds richness throughout the layers and helps the vegetables become beautifully tender as they bake.

All-purpose flour lightly absorbs the vegetable juices as the Boureki cooks, helping create its characteristic creamy texture. You don’t need a heavy coating.

Heavy whipping cream adds richness and moisture, bringing the layers together as the vegetables slowly bake.

What do I need for the cheese layer?

Ricotta cheese adds a mild, creamy texture that balances the saltier Greek cheeses. If your ricotta is particularly wet, drain it before assembling the dish. This is another easy way to prevent excess liquid in the finished Boureki.

Feta cheese brings tangy, salty richness throughout the vegetable layers. Here’s the link to my favorite brand.

Kefalotyri or Parmesan cheese adds sharp savoriness and creates a beautifully golden cheesy top. Kefalotyri gives the dish a more distinctly Greek flavor, but Parmesan is an excellent substitute and is much easier to find.

What herbs do I use?

Onion adds a savory and subtle sweetness as it softens between the vegetable layers.

Fresh mint brings a distinctive bright, refreshing flavor that complements the zucchini and rich cheeses.

Fresh parsley adds fresh herbiness and color throughout the Boureki.

Do I need to prepare the zucchini?

Place the sliced zucchini in a large colander and season lightly with salt. Set aside for about 1 hour to let the zucchini release excess moisture. Drain well and pat the slices dry with clean kitchen towels or paper towels. This step helps prevent the Boureki from becoming watery.

How do I season the vegetables?

Preheat the oven to 350°F (180°C). Transfer the drained zucchini to a bowl or work surface. Drizzle with some of the olive oil and season with black pepper and oregano. Taste before adding additional salt since the zucchini has already been salted. Place the potatoes in a separate large bowl and toss with about ¼ cup olive oil, salt, and black pepper.

Which cheeses go in the cheese mixture?

Combine the ricotta and crumbled feta in a bowl and mix until evenly combined.

Do I keep the herbs separate?

In another bowl, combine the finely chopped onion, mint, and parsley.

How do I build the first zucchini layer?

Drizzle 2–3 tablespoons of olive oil over the bottom of a 10 x 10-inch baking dish. Arrange half of the zucchini slices in an even layer over the bottom of the dish. Scatter half of the onion and herb mixture over the zucchini. Dollop one-quarter of the feta-ricotta mixture over the herbs, then lightly dust the layer with flour.

When do I add the first potato layer?

Arrange half the potatoes over the cheese-flour dusting. Drizzle with half of the heavy cream and sprinkle with one-third of the shredded kefalotyri or Parmesan. Dollop another quarter of the feta-ricotta mixture over the potatoes.

Do I repeat the layers?

Add the remaining zucchini, followed by the remaining onion and herb mixture, another quarter of the feta-ricotta mixture, and another light dusting of flour. Arrange the remaining potatoes over the top. Pour over the remaining heavy cream and add the remaining feta-ricotta mixture.

How do I finish the Boureki before baking?

Sprinkle the remaining kefalotyri or Parmesan evenly over the top. Finish with a little oregano and a drizzle of olive oil.

Does Boureki take long to bake?

Don’t rush the baking time. Boureki is meant to bake slowly. The long covered bake allows the potatoes and zucchini to become wonderfully tender while all of the herbs, cheeses, olive oil, and vegetable juices meld together. Place the Boureki on the center rack and bake, uncovered, for 25 minutes. Remove the baking dish from the oven. Cover first with parchment paper and then tightly with aluminum foil. Return to the oven and bake for about 1½ hours, or until the vegetables are becoming very tender.

How do I brown the top?

Remove the foil and parchment and bake uncovered for another 20–30 minutes, or until the potatoes are completely fork-tender and the top is beautifully golden.

Should Boureki rest before serving?

Allow the Boureki to rest for at least 20–30 minutes before slicing and serving. This gives the layers time to settle and makes serving much easier. You can even serve at room temperature, and it will still taste amazing. Kali Orexi!

What’s the best way to ensure the potato and zucchini slices are even?

A mandoline makes quick work of the potatoes and zucchini and helps them cook at the same rate. If slicing by hand, just try to keep the slices as uniform as possible.

Can I make boureki ahead of time?

Assemble the Boureki, cover tightly, and refrigerate until ready to bake. Because the dish will be cold, allow a little additional baking time as needed.

What’s the best way to store leftovers?

Refrigerate leftovers in an airtight container for up to 4 days. Reheat individual portions in the oven or microwave.

For the Vegetables

For the Cheese Layer

For the Onion & Herb Layer

Prepare the zucchini: Place the sliced zucchini in a large colander and season lightly with salt. Set aside for about 1 hour to allow the zucchini to release its excess moisture. This step helps prevent the Boureki from becoming watery.

Season the vegetables: Transfer the drained zucchini to a bowl or work surface.

Build the first zucchini layer: Arrange half of the zucchini slices in an even layer over the bottom of the dish.

Add the first potato layer: Arrange half of the potatoes over the zucchini.

Repeat the layers: Add the remaining zucchini, followed by the remaining onion and herb mixture, another quarter of the feta-ricotta mixture, and another light dusting of flour. Arrange the remaining potatoes over the top.

1½ hours, or until the vegetables are becoming very tender.

Brown the top: Remove the foil and parchment and bake uncovered for another.

20-30 minutes, or until the potatoes are completely fork-tender and the top is beautifully golden.

Rest before serving: Allow the Boureki to rest for at least.

20-30 minutes before slicing and serving. This gives the layers time to settle and makes it much easier to serve.