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Ultimate Creamy Green Bean Casserole: 5-Step Best Recipe

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A homemade green bean casserole featuring a rich béchamel-based roux sauce, fresh blanched green beans, and crispy fried onions. This recipe elevates the classic holiday side dish with better texture and flavor.

Ingredients

Scale
  • 2 pounds fresh green beans, trimmed and cut into 2-inch pieces
  • 4 tablespoons unsalted butter, softened
  • 1/4 cup all-purpose flour (for roux)
  • 2 cups whole milk
  • 1 cup chicken or vegetable broth
  • 1 teaspoon Dijon mustard
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and black pepper to taste
  • 1.5 cups thinly sliced yellow onions
  • 1/4 cup all-purpose flour (for frying onions)
  • 2 tablespoons neutral oil (vegetable or canola)

Instructions

  1. Slice yellow onions into thin half-moons. Toss with 1/4 cup flour until lightly coated.
  2. Heat oil in a large skillet over medium heat. Add onions and cook for 10-12 minutes, stirring frequently, until golden brown and crispy. Remove with a slotted spoon to paper towels to drain; season with salt.
  3. Bring a large pot of salted water to a boil. Add green beans and cook for 3-4 minutes until tender-crisp. Immediately transfer to an ice water bath to stop cooking. Drain well and pat dry thoroughly.
  4. In a saucepan or skillet, melt butter over medium heat. Whisk in 1/4 cup flour and cook for 2 minutes, stirring constantly, until the mixture is light blonde.
  5. Gradually whisk in milk and broth. Simmer for 3-4 minutes until the sauce thickens enough to coat the back of a spoon.
  6. Stir in Dijon mustard, garlic powder, onion powder, salt, and pepper. Taste and adjust seasoning.
  7. Preheat oven to 350°F (175°C). In a large bowl, combine drained green beans and the creamy sauce.
  8. Pour mixture into a greased 9×13 inch baking dish. Sprinkle crispy fried onions evenly over the top.
  9. Bake for 20-25 minutes until the sauce is bubbling around the edges and onions are golden. Let rest for 5 minutes before serving.

Notes

Ensure green beans are thoroughly dried after blanching to prevent a watery sauce. If the sauce is too thick, add a splash of milk. If onions burn during baking, cover loosely with foil for the last 10 minutes. For a vegetarian version, use vegetable broth. For a gluten-free version, use a 1:1 gluten-free flour blend.

Nutrition

Keywords: green bean casserole, holiday side dish, comfort food, homemade casserole, creamy green beans, crispy onions, Thanksgiving recipe

Find it online: https://lirafood.com/ultimate-creamy-green-bean-casserole-5-step-best-recipe/