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This image shows Crockpot green bean casserole served in a white bowl, mixed with creamy mushroom soup, milk, salt, and pepper until fully blended, creating a rich and savory dish.

Crockpot Green Bean Casserole Recipe

This Crockpot Green Bean Casserole is a creamy, comforting side dish made with tender green beans, rich cream of mushroom soup, and crispy French fried onions. It’s the perfect hands-off recipe for holidays or family dinners, offering classic flavors with minimal effort.
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Prep Time 5 minutes
Cook Time 2 hours
Total Time 2 hours 5 minutes
Course Side Dish
Cuisine American
Servings 8 people
Calories 216 kcal

Equipment

  • Crockpot (slow cooker)
  • Medium mixing bowl
  • Mixing spoon or spatula
  • Serving spoon
  • Non-stick cooking spray
  • Measuring cups

Ingredients
  

  • ½ tsp salt
  • 3 cans cut green beans
  • 1 can French Fried onions
  • ½ tsp pepper
  • ⅓ cup milk
  • 2 cans cream of mushroom soup

Instructions
 

  • In a medium mixing bowl, stir together the cream of mushroom soups, milk, salt, and pepper until fully blended.
    This image shows cream of mushroom soup, milk, salt, and pepper being stirred together in a mixing bowl until smooth and fully blended, forming the creamy base for the green bean casserole.
  • Add the green beans to the mixture and gently fold until everything is evenly coated.
    This image shows fresh green beans being added to the creamy mixture of mushroom soup, milk, and seasonings, ready to be combined for the Crockpot green bean casserole.
  • Stir in ½ cup of French fried onions, mixing carefully to distribute them throughout.
    This image shows crispy French fried onions being stirred into the green bean and creamy soup mixture, adding a crunchy texture to the Crockpot green bean casserole.
  • Lightly coat the inside of your crockpot with non-stick spray and pour in the green bean mixture, spreading it out evenly.
    This image shows the creamy green bean casserole mixture being transferred from a mixing bowl into a Crockpot, ready to be slow-cooked to perfection.
  • Cover the crockpot with the lid and cook on low for 2 to 3 hours, or on high for 1 hour if you’re short in time.
    This image shows the green bean casserole simmering in the Crockpot, cooking slowly until the green beans are tender and the creamy mixture is heated through.
  • Once done, remove the lid and sprinkle the remaining French fried onions over the top.
    This image shows a generous layer of crispy French fried onions being sprinkled over the top of the cooked green bean casserole, adding a golden, crunchy finish.
  • Serve warm and enjoy!
    This image shows a serving of Crockpot green bean casserole being scooped into a dish, revealing the creamy green beans beneath a crispy layer of French fried onions.

Notes

  • Mix in a splash of soy sauce or Worcestershire sauce with the soup.
  • Fresh or frozen green beans can be used instead of canned, but adjust cooking time accordingly.
  • For a cheesy twist, sprinkle shredded cheddar cheese on top before adding the final layer of fried onions.