Vegan Cauliflower, Leek and Cheese Gratin

Vegan Cauliflower, Leek and Cheese Gratin

for a midweek feast

Recipe by
Reviewed by Arturs Arnicans
Prep Time: 25m
Cook Time: 25m
Total Time: 50m
Temp.: 400 °F
Servings: 4
Difficulty: Easy
4.9 (13 Reviews)
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Ingredients

Adjust servings:

For vegan béchamel sauce:

For topping:

Nutritional Information

282
calories
8.4g
fat
39g
carbohydrates
7.4g
protein
0mg
cholesterol
1053mg
sodium
Vegan Cauliflower, Leek and Cheese Gratin

Recipe Description

This Vegan Cauliflower, Leek and Cheese Gratin is the ultimate cozy dish for a midweek feast! Tender blanched cauliflower and sautéed leeks are all coated in a creamy, rich sauce. This recipe is also vegan, owing to a quick, creamy sauce made with plant-based milk and vegan blue cheese and thickened with flour. The magic happens when the dish is baked to golden perfection in the oven, letting those breadcrumbs and flaked almonds get wonderfully crispy.

For the best results, make sure to blanch the cauliflower florets in boiling salted water. This step not only elevates the flavor and texture of the dish but also helps to temper the pungent aroma of cauliflower. Once they’ve drained well, combine them with the sautéed leeks and lush béchamel sauce, then bake, and you’re ready for a delightful meal that’s both satisfying and comforting! Enjoy every bite!

To make the Vegan Cauliflower, Leek and Cheese Gratin, you will need the following ingredients:

Ingredients for Vegan Cauliflower, Leek and Cheese Gratin

Steps to make

  1. 1

    Heat oven and prepare baking dish

    Step 1 - Vegan Cauliflower, Leek and Cheese Gratin

    Preheat the oven to 400 °F and lightly brush a 1-quart baking dish with olive oil.

  2. 2

    Cook leeks

    15 min
    Step 2 - Vegan Cauliflower, Leek and Cheese GratinStep 2 - Vegan Cauliflower, Leek and Cheese Gratin

    In a skillet, heat 1 tablespoon olive oil and add 2 sliced leeks and 1 teaspoon thyme leaves. Cook, stirring occasionally, for 15 minutes.

  3. 3

    Blanch cauliflower

    2 min
    Step 3 - Vegan Cauliflower, Leek and Cheese Gratin

    In the meantime, to a large pot of lightly salted boiling water, add the cauliflower florets and boil for 2 minutes.

  4. 4

    Combine cauliflower and leeks

    3 min
    Step 4 - Vegan Cauliflower, Leek and Cheese GratinStep 4 - Vegan Cauliflower, Leek and Cheese Gratin

    Drain the cauliflower well. Mix the cauliflower florets with the sautéed leeks. Season with a pinch of grated nutmeg, and salt and black pepper to taste. Transfer the mixture to the prepared baking dish.

  5. 5

    Make roux

    1 min
    Step 5 - Vegan Cauliflower, Leek and Cheese Gratin

    Heat ⅓ cup olive oil in the pan and stir in ⅓ cup flour. Cook, stirring constantly, for 1 minute.

  6. 6

    Make bechamel sauce

    4 min
    Step 6 - Vegan Cauliflower, Leek and Cheese Gratin

    Gradually whisk in 1 ⅔ cups unsweetened plant-based milk. Stir in ¼ cup crumbled cheese until melted. Remove from the heat. Taste and adjust for seasoning if needed.

  7. 7

    Toss breadcrumbs with oil

    1 min
    Step 7 - Vegan Cauliflower, Leek and Cheese Gratin

    Toss 1 ounce fresh breadcrumbs with 1 tablespoon olive oil. Set aside.

  8. 8

    Assemble gratin

    2 min
    Step 8 - Vegan Cauliflower, Leek and Cheese Gratin

    Pour the béchamel sauce over the vegetables in the baking dish. Sprinkle the breadcrumbs over the gratin. Scatter ⅛ cup flaked almonds over the top.

  9. 9

    Bake

    25 min
    Step 9 - Vegan Cauliflower, Leek and Cheese Gratin

    Bake the gratin for 25-30 minutes or until the top is golden.

  10. 10

    Serve

    Step 10 - Vegan Cauliflower, Leek and Cheese Gratin

    Allow to cool for 5 minutes, then serve warm.

About the author

Nina Cole

Nina dreams of gender equality and for women all over the world to feel empowered and enjoy the same freedom she has. She’s a careful consumer, believing that by being more conscious about the way we live we can make the world a better place! Already a vegetarian, she uses animal products sparingly and tries to produce as little waste as possible. Most of her recipes are vegan as a result!

Recipe Reviews

Have you made this recipe? Share your experience and help other cooks!

★★★★★
★★★★★
4.9 out of 5 (13 reviews)
Jack
March 21, 2025
Verified

This gratin made my midweek dinner feel special, loved it!

Nate
March 9, 2025
Verified

This is a great dish. I made it for my wife last week after a long day and it was perfect. The creamy sauce really tied everything together, and we loved the crispy topping. Thank you for the recipe

Tina
March 2, 2025
Verified

I gotta say, this Vegan Cauliflower, Leek and Cheese Gratin is so good! The kids loved it, and it was super easy to whip up after a long day. I made it for a family dinner, and everyone wanted seconds. Those crispy breadcrumbs on top were a hit. Definitely making this again!

Quinn
March 1, 2025
Verified

Delish! I made this gratin for my husband and I on a chilly night, and it warmed us right up. The flavors really blend well and it's so creamy! Will def make again!

Quinn
February 17, 2025
Verified

Amazing, delicious recipe!

Irene
February 4, 2025
Verified

Superb dish! Made this gratin for family dinner last night and it was a hit. The creamy sauce and crispy topping were perfect! My husband couldn't believe it was vegan. So glad I found this recipe!

Olivier Dupont
January 30, 2025
Verified

J'ai préparé ce gratin pour un dîner en famille et tout le monde a adoré. Les leeks et la sauce étaient incroyables. Recette à refaire.

Katherine Loomis
January 29, 2025
Verified

Cozy and creamy

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