Go Back
Green bean casserole from scratch

Grandma's Old-Fashioned Green Bean Casserole

Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 2 pounds fresh green beans trimmed and cut into 2-inch pieces
  • 3 tablespoons butter
  • 8 ounces fresh mushrooms sliced
  • 1 small onion finely diced
  • 2 cloves garlic minced
  • 3 tablespoons all-purpose flour
  • 1 cup chicken broth
  • 1 cup heavy cream
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon ground nutmeg
  • 1 1/2 cups french fried onions divided

Method
 

  1. Preheat oven to 350°F. Bring a large pot of salted water to a boil.
  2. Blanch green beans in boiling water for 5 minutes until bright green and crisp-tender. Drain and set aside.
  3. In a large skillet, melt butter over medium heat. Add mushrooms and onion, cooking until softened, about 6-7 minutes.
  4. Add garlic and cook for 1 minute until fragrant. Sprinkle flour over the vegetables and stir to coat.
  5. Gradually whisk in chicken broth and cream. Cook, stirring constantly, until the sauce thickens, about 3-4 minutes.
  6. Season with salt, pepper, and nutmeg. Remove from heat and stir in green beans and 3/4 cup of the fried onions.
  7. Transfer mixture to a greased 9x13-inch baking dish. Bake for 20 minutes.
  8. Top with remaining fried onions and bake for 5 more minutes until onions are golden and crispy. Serve hot.