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Green Bean Casserole
5 from 5 votes

Green Bean Casserole

This crowd-pleasing French’s green bean casserole is made of fresh green beans, freshly made mushroom béchamel sauce, and French crispy fried onions. Absolutely delicious, and easy to make! It’s the ultimate comfort food to feed a crowd.
Prep Time 10 mins
Cook Time 45 mins
Course Side Dish
Cuisine American
Servings 8
Calories 238 kcal


  • 2 pounds fresh green beans
  • 24 oz cremini mushrooms, (chopped)
  • 2 tablespoon unsalted butter
  • 2 tablespoon all-purpose flour
  • 1 teaspoon onion powder
  • 1 teaspoon garlic powder
  • 1 teaspoon kosher salt, (less or more according to your liking)
  • 1 teaspoon black pepper
  • ¼ teaspoon ground nutmeg
  • 1 teaspoon dijon mustard
  • cup chicken broth
  • 1 cup heavy cream
  • 1 cup French's Original Crispy Fried Onions, (or use more according to your liking)


  • Preheat the oven to 375°F.
  • In a large pot, bring a gallon of water and 2 tablespoons of salt to a boil.
    Add green beans and blanch for about 3-5 minutes 3-5 minutes depending on the size of green beans or until bright green and halfway to tenderness.
    Drain and place in an ice-water bath to stop cooking. Drain and set aside.
  • In a large skillet over medium-high, melt butter and cook sliced mushrooms, undisturbed for 2 minutes, and continue to cook, stirring, until they are soft and most of their liquid has evaporated for about 4-5 minutes.
  • Melt butter and add flour, cook and keep stirring for 1-2 minutes or until roux is golden brown and smells mildly nutty.
  • Add garlic powder, dijon mustard, onion powder, black pepper, nutmeg and stir for 1 minute.
  • Add chicken broth, simmer for 1-2 minutes.
  • Add heavy cream, reduce the heat and simmer for 6-8 minutes or the sauce thickens and coats the back of a spoon. Stirring occasionally. Remove from the heat.
  • Add the blanched green beans and stir to coat in the sauce. Transfer the mixture to a 3-quart or 9'x13' baking dish then layer French fried onions on top.
  • Cook in the oven until hot and bubbly for about 15-20 minutes.


Calories: 238kcalCarbohydrates: 18gProtein: 5gFat: 18gSaturated Fat: 10gCholesterol: 48mgSodium: 515mgPotassium: 677mgFiber: 4gSugar: 5gVitamin A: 1308IUVitamin C: 17mgCalcium: 79mgIron: 2mg
Keyword French's Green Brean Casserole, Green Bean Casserole, Homemade Green Bean Casserole, Thanksgiving Green Bean Casserole
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