Jul 14 2026
RestaurantsLuceVegetable Fennel And Onion Gratin Recipe

Vegetable Fennel And Onion Gratin Recipe

Inspired by Luce
Time1h
Serves4

Make Vegetable Fennel And Onion Gratin Recipe in just 1h . Get the full recipe with step-by-step instructions at pekinthechef.com.

Was this page helpful?

Help improve this recipe for others.

Send this recipe to your inbox.

We'll email it straight to you - plus weekly cooking inspiration.

Ingredients

Some product links may be affiliates. If you buy through them, you're supporting the site and Pekin may earn a commission at no extra cost to you.

Gratin Ingredients

Method

Cooking Directions

  1. 1

    Prepare the Vegetables

    Start by washing and slicing the fennel bulbs, onion, zucchini, and carrots.

  2. 2

    Sauté the Aromatics

    In a large skillet, heat the olive oil over medium heat. Add the sliced onion and garlic, sautéing for about 3-4 minutes until the onion is translucent.

  3. 3

    Add Other Vegetables

    Add the sliced fennel, zucchini, and carrots to the skillet. Season with salt, black pepper, and thyme. Cook for an additional 5-7 minutes, stirring occasionally, until the vegetables are slightly tender.

  4. 4

    Prepare the Cream Mixture

    In a mixing bowl, combine the heavy cream and half of the grated Parmesan cheese. Mix well and set aside.

  5. 5

    Assemble the Gratin

    Preheat your oven to 375°F (190°C). In a greased baking dish, layer the sautéed vegetables evenly. Pour the cream mixture over the top and sprinkle the remaining Parmesan cheese.

  6. 6

    Bake the Gratin

    Cover the baking dish with aluminum foil and bake for 30 minutes. Remove the foil and bake for an additional 15-20 minutes until the top is golden and bubbly.

  7. 7

    Serve

    Once baked, let the gratin sit for a few minutes before serving. Enjoy your Vegetable Fennel and Onion Gratin warm!

More from Luce