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A close up of a crockpot with green beans.

Crockpot Green Bean Casserole

Free up some oven space with this slow cooker version of the classic green bean casserole. No canned soups here either!
Course Side Dish
Cuisine American
Keyword crockpot, holiday recipes, slow cooker, thanksgiving
Prep Time 10 minutes
Cook Time 3 hours
Total Time 3 hours 10 minutes
Servings 10
Calories 237kcal


  • 3 tablespoons butter
  • 8 ounces diced mushrooms
  • 2 tablespoons flour
  • 1 cup chicken broth
  • 1 cup milk
  • 1/2 teaspoon salt
  • 32 ounces frozen green beans
  • 1 cup grated cheddar
  • 6 ounces French’s fried onions
  • salt and pepper to taste


  • Add the butter to a large skillet over medium heat and melt.
  • Once butter has melted, add the mushrooms and cook, stirring often, about 5 minutes.
  • Sprinkle the flour over the mushrooms and stir to coat.
  • Stir in the chicken broth, milk, and salt, cooking over medium heat and stirring constantly, until the mixture has thickened, about 3 minutes.
  • Add the frozen green beans to a 5-6 quart slow cooker and top with the mushroom mixture.
  • Add the grated cheddar and half of the fried onions. Stir well to combine.
  • Cover and cook on low for 6 hours or on high for 3 hours, until cheese is melted and mixture is hot and bubbly.
  • Taste and add salt and pepper as desired.
  • Sprinkle with remaining fried onions before serving.



Calories: 237kcal | Carbohydrates: 17g | Protein: 6g | Fat: 17g | Saturated Fat: 9g | Cholesterol: 23mg | Sodium: 461mg | Potassium: 326mg | Fiber: 3g | Sugar: 5g | Vitamin A: 884IU | Vitamin C: 13mg | Calcium: 145mg | Iron: 1mg