Homemade Green Bean Casserole

Homemade Green Bean Casserole

A homemade green bean casserole made from scratch with a creamy sauce and crispy fried onions. A classic old-fashioned Thanksgiving side dish recipe. 

Ingredients

  • 1 lb. Fresh Green Beans)

    (ends snapped off

  • 8 Tablespoons Salted Butter)

    (divided

  • 1 Large Onion)

    (chopped

  • 8 ounces Sliced Mushrooms
  • 3 cloves Garlic)

    (minced

  • 2 1/2 cups Half n Half
  • 1 teaspoon Salt
  • 1 teaspoon Pepper
  • 2 Tablespoons Flour or Cornstarch
  • 2 cups Fried Onions)

    (such as French's

  • 1/2 cup Parmesan Cheese

    grated), (optional

Directions

  1. 1

    In a large skillet, heat 4 Tablespoons of butter over medium-high heat. Add onions and cook until tender and caramelized, about 7-8 minutes, stirring often. Add mushrooms and cook for 4 minutes longer. Stir in garlic and cook for 1 minute. Transfer the mixture to a bowl. 

  2. 2

    After the onion-mushroom mixture has been removed, use the same skillet. Heat skillet to a medium heat and add remaining 4 Tablespoons of butter. Add flour or cornstarch and begin to quickly whisk the mixture. Let cook, whisking often, for about 2 minutes.  Stir in half-n-half, salt, and pepper. Cook for 4-5 minutes until mixture thickens. Taste and check for seasonings. 

  3. 3

    Preheat oven to 350 degrees. Bring a large pot of water to a boil. Add green beans and cook for 6-7 minutes.  Drain and transfer to ice bath to cool (optional).

  4. 4

    Add onion-mushroom mixture to cream sauce and stir. Add green beans and stir to coat. Sprinkle with parmesan cheese, if using. Pour into a 9 x 9 baking dish. Bake for 25 minutes or until bubbly.  Remove from the oven and cover with fried onions. Bake for 5 minutes longer. Serve immediately, if possible. 

Homemade Green Bean Casserole

Homemade Green Bean Casserole

5.0(162)

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About this Recipe

Craving that quintessential, comforting side dish that defines holiday meals? This Homemade Green Bean Casserole delivers all the nostalgia and flavor of the classic, elevated with fresh ingredients and a rich, creamy sauce made from scratch. Forget the canned soups—you're about to create a Thanksgiving centerpiece.

What truly sets this recipe apart is its dedication to fresh, wholesome ingredients. By building the creamy sauce from a sautéed base of fresh butter, onions, mushrooms, and garlic, you achieve a depth of flavor that simply can't be replicated with pre-made components. This approach ensures every bite is bursting with savory goodness, perfectly complementing the tender green beans.

Expect a symphony of textures and tastes: crisp-tender fresh green beans enveloped in a velvety, savory sauce, infused with earthy mushrooms and aromatic garlic and onion. The pièce de résistance is a generous topping of golden, crispy fried onions, providing that essential crunch and a salty counterpoint to the creamy base. This from-scratch casserole offers a warm, inviting experience that feels both traditional and wonderfully gourmet, making it a guaranteed crowd-pleaser for any gathering.

While this recipe shines as a classic, you can easily adapt it to your taste. For an extra layer of savory depth, consider stirring in the optional grated Parmesan cheese with the creamy sauce. This recipe is intentionally designed to showcase the fresh ingredients and classic flavors, so enjoy it in its purest, most comforting form.

This homemade casserole is the ultimate celebratory side dish, perfect for holiday feasts like Thanksgiving or any special occasion where hearty, comforting food is desired. Serve it warm directly from the baking dish, allowing guests to enjoy its inviting aroma and beautiful golden-brown topping.

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