Swiss Chard, Fennel, and White Bean Gratin Recipe

J. Kenji Lopez-Alt

Fennel, swiss chard, and white beans in a creamy gratin scented with nutmeg and topped with cheesy breadcrumbs.

Recipe Facts

Active: 30 mins
Total: 60 mins
Serves: 8 to 10 servings

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  • 5 tablespoons unsalted butter

  • 1 large bulb fennel, cored, and sliced thin (about 3 cups)

  • 1 large onion, sliced thin (about 1 1/2 cups)

  • Kosher salt and freshly ground black pepper

  • 3 medium cloves garlic, minced (about 1 tablespoon)

  • 3 bunches Swiss chard (about 1 pound), leaves removed, tender stems sliced thinly

  • 1/2 teaspoon freshly grated nutmeg

  • 1 tablespoon flour

  • 1 1/2 cups half-and-half

  • 2 (15-ounce) cans white beans, drained and rinsed

  • 1 1/2 cups fresh breadcrumbs

  • 2 ounces finely grated Parmesan or Romano cheese (about 1 cup)


  1. Adjust oven rack to middle position and preheat oven to 400°F. Melt 2 tablespoons butter in a large saucepot or Dutch oven over medium-high heat. Add fennel and onion, season with salt and pepper, and cook, stirring occasionally, until vegetables are softened and translucent, about 10 minutes, reducing heat if it starts to brown. Add garlic and cook, stirring constantly until fragrant, about 30 seconds.

  2. Add 1/3 or swiss chard and cook, stirring, until wilted, about 1 minute. Repeat with remaining swiss chard in two more batches. Add nutmeg and flour and stir to combine. Add half and half, stir to combine, and cook, stirring occasionally, until thickened. Add beans and reduce to a bare simmer. Continue to cook, stirring occasionally, for 10 minutes.

  3. Meanwhile, melt remaining 3 tablespoons butter. Toss breadcrumbs, butter, and cheese in a large bowl and season with salt and pepper.

  4. Season filling with salt and pepper, transfer to a large casserole dish, top with breadcrumbs, and bake until golden brown on top and bubbling around the edges, about 30 minutes. Remove from oven, let rest about 10 minutes, and serve.

Special equipment

13- by 9-inch casserole dish

This Recipe Appears In

Nutrition Facts (per serving)
288 Calories
12g Fat
34g Carbs
12g Protein
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Nutrition Facts
Servings: 8 to 10
Amount per serving
Calories 288
% Daily Value*
Total Fat 12g 16%
Saturated Fat 7g 37%
Cholesterol 33mg 11%
Sodium 745mg 32%
Total Carbohydrate 34g 13%
Dietary Fiber 6g 22%
Total Sugars 6g
Protein 12g
Vitamin C 13mg 67%
Calcium 212mg 16%
Iron 4mg 22%
Potassium 785mg 17%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)