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Green Bean Casserole with Pumpkin Seed Crumble (Clean Thanksgiving Twist)

This Green Bean Casserole with Pumpkin Seed Crumble pairs tender-crisp beans and garlicky sautéed baby portobellos with a light, silky roux for balanced richness. A toasty pumpkin seed–panko topping adds nutty crunch that contrasts the earthy mushrooms and fresh beans. Serve it alongside your holiday mains or at any fall dinner where you want a lighter, modern side with real texture.

  • Prep10 mins
  • Cook28 mins
  • Serves4
  • DifficultyMedium
Green Bean Casserole with Pumpkin Seed Crumble (Clean Thanksgiving Twist)
  1. 1

    Preheat the oven to 425 degrees F (220 degrees C). Grease a 9x13-inch glass baking pan.

  2. 2

    Fill a large bowl with cold water and ice to create an ice bath.

  3. 3

    Fill a large pot with water and add 1 tablespoon salt; bring to a boil. Add the green beans; boil until fork-tender, 5 to 6 minutes. Drain the beans in a colander and immediately submerge them in the ice bath. Drain again. Pat dry with a kitchen towel or paper towels.

  4. 4

    Heat 1 tablespoon oil in a large skillet over medium-high heat. Add the garlic; sauté for 1 minute. Add the mushrooms; sauté until softened, about 5 minutes. Season with salt and white pepper. Remove from the heat. Toss in the cooked green beans. Transfer the mixture to the baking pan.

  5. 5

    Heat 1 tablespoon oil and the flour in the skillet over medium-high heat. Cook, whisking constantly, until combined, about 1 minute. Slowly add the milk, whisking until the roux is creamy and smooth, about 2 minutes. Season with salt and white pepper. Add the roux to the pan, tossing to coat the green bean-mushroom mixture.

  6. 6

    Combine the pumpkin seeds, bread crumbs, and 2 teaspoons oil in a food processor. Pulse about 10 times until ground. Season with salt; pulse once more. Sprinkle the pulsed pumpkin seed mixture over the green bean-mushroom mixture.

  7. 7

    Bake in the preheated oven until the top is golden brown, about 10 minutes.