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Creamy Mushroom and Green Bean Casserole with Crispy Onions Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 107 reviews
  • Author: Jaden
  • Prep Time: 20 minutes
  • Cook Time: 60 minutes
  • Total Time: 80 minutes
  • Yield: 8 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Description

This updated Green Bean Casserole is a healthier, flavorful twist on the classic holiday side dish. Featuring fresh green beans blanched to crisp-tender perfection and a rich homemade creamy mushroom sauce made from cremini mushrooms, garlic, thyme, and Parmesan cheese, this recipe offers a delicious balance of textures and flavors. Topped with crunchy French fried onions or crispy baked onions, it’s an irresistible dish perfect for holiday dinners or any special occasion.

Ingredients

Scale

Vegetables

  • 1½ pounds green beans (trimmed and halved)
  • 16 ounces cremini mushrooms (sliced)
  • 4 garlic cloves (minced)
  • 2 tablespoons fresh thyme leaves

Sauce

  • 2 tablespoons extra-virgin olive oil
  • 2 tablespoons tamari
  • ¼ cup all-purpose flour
  • 3 cups milk (any kind)
  • 1½ teaspoons Dijon mustard
  • ½ cup grated Parmesan cheese (plus more for sprinkling)
  • ¼ teaspoon freshly ground black pepper

Topping

  • 1½ cups French fried onions (or homemade Crispy Baked Onions)

Instructions

  1. Preheat Oven and Prepare Baking Dish: Preheat your oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish to prevent sticking and set aside.
  2. Blanch the Green Beans: Bring a large pot of salted water to a boil. Prepare a large bowl filled with ice water nearby. Add the trimmed and halved green beans to the boiling water and blanch for 4 minutes until crisp-tender. Immediately drain and immerse the green beans in the ice water to stop the cooking process and preserve their vibrant color. Drain again and transfer them to a towel to dry thoroughly.
  3. Cook the Mushrooms: In a large skillet, heat the extra-virgin olive oil over medium heat. Add the sliced cremini mushrooms and cook for 8 to 10 minutes until they soften and release their moisture. Stir in the tamari, minced garlic, and fresh thyme leaves, cooking briefly until aromatic.
  4. Make the Cream Sauce: Sprinkle the all-purpose flour evenly over the mushrooms and stir well to coat. Gradually add the milk and Dijon mustard while stirring to combine. Simmer the mixture, whisking frequently, for 15 to 20 minutes or until the sauce thickens to a creamy consistency. Remove from heat and stir in the grated Parmesan cheese and freshly ground black pepper.
  5. Assemble the Casserole: Spread one-third of the creamy mushroom sauce evenly on the bottom of the prepared baking dish. Layer the blanched green beans over the sauce, then pour the remaining mushroom sauce on top to cover the beans completely.
  6. Add Topping and Bake: Sprinkle the French fried onions (or homemade crispy baked onions) evenly over the casserole. Cover the dish and bake in the preheated oven for 10 minutes. Then, uncover and bake for an additional 10 minutes to crisp the topping. If the onions begin to brown too quickly, cover the dish loosely with foil for the remainder of the baking time.
  7. Garnish and Serve: Remove the casserole from the oven and sprinkle additional Parmesan cheese over the top if desired. Serve hot as a delicious side dish.

Notes

  • This recipe uses fresh green beans and a homemade mushroom sauce for a healthier and tastier take on the traditional green bean casserole.
  • You can substitute the French fried onions with homemade crispy baked onions for a fresher topping option.
  • Make sure to dry the green beans thoroughly after blanching to avoid a watery casserole.
  • If the fried onions start browning too fast during baking, cover the casserole loosely with foil to prevent burning.

Nutrition

  • Serving Size: 1 cup
  • Calories: 220
  • Sugar: 4g
  • Sodium: 380mg
  • Fat: 11g
  • Saturated Fat: 3.5g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 4g
  • Protein: 8g
  • Cholesterol: 10mg

Find it online: https://yummyhere.com/creamy-mushroom-and-green-bean-casserole-with-crispy-onions-recipe/