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Green bean casserole in a baking dish with a wooden serving spoon.

Green Bean Casserole

Prep Time: 20 minutes
Cook Time: 30 minutes
Total Time: 50 minutes
Servings: 6
Author: Amy

Ingredients

  • 24 oz. frozen green beans thawed
  • 4 tablespoons butter
  • 8 oz. mushrooms sliced
  • 3 tablespoons flour
  • 1 cup chicken broth or water
  • 1 cup heavy cream
  • ½ cup grated parmesan cheese
  • 2 teaspoons garlic powder
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 2 ½ cups fried onions

Instructions

  • Preheat oven to 375°F (190°C) and move the rack one space above the middle. Lightly grease a 9" x 13" casserole dish with butter or cooking spray and set aside.
  • Place the thawed green beans in a large microwave-safe bowl, I use an 8 cup Pyrex batter bowl, and cook for 3 minutes on high. You want them to have a crisp-tender texture. (If you don't have a microwave, boil the green beans in water for 2-3 minutes, drain and transfer to a large bowl.)
  • Melt 2 tablespoons of butter in a large skillet over medium-high heat. Add the mushrooms and cook until they have softened. Transfer them to the bowl of green beans along with 1 cup of fried onions.
  • Melt the remaining 2 tablespoons of butter in the skillet and add the flour. Use a whisk to mix the butter and flour into a paste. Allow it to cook 2-3 minutes while whisking until it turns a very light golden brown. Add ½ cup chicken stock and whisk until the mixture is smooth. (Adding this small amount of liquid in this step will prevent clumps when you add the remaining liquid.)
  • Add the remaining chicken stock, heavy cream, parmesan cheese, garlic powder, salt and pepper and whisk until it starts to bubble and thicken, 4-5 minutes. Pour the sauce into the bowl of green beans and stir to combine the ingredients.
  • Transfer the mixture to the casserole dish and top evenly with the remaining 1 ½ cups of fried onions. Bake for 30 minutes or until bubbly and golden brown on top.
Nutrition Facts
Green Bean Casserole
Amount Per Serving
Calories 446 Calories from Fat 324
% Daily Value*
Fat 36g55%
Carbohydrates 25g8%
Protein 8g16%
* Percent Daily Values are based on a 2000 calorie diet.

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