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    Home » Recipes » Side » Slow Cooker Green Bean Casserole

    Slow Cooker Green Bean Casserole

    Published: Nov 24, 2020 · Modified: Apr 11, 2023 by Tonia Larson

    This post may contain affiliate links. Please read my disclosure policy.

    ↓ JUMP TO RECIPE ↓ JUMP TO VIDEO

    Slow Cooker Green Bean Casserole is the EASIEST way to make this classic side dish. Plus, cooking green bean casserole in a crockpot frees up oven space!

    slow cooker green bean casserole spoonful

    Green bean casserole is a must at every holiday dinner. The creamy, crunchy combination is fantastic!

    Since green bean casserole is a mix and heat side dish, it is the perfect thing to cook in a slow cooker. Just mix it up, turn the crockpot on and forget it about it while you focus on the other dishes.

    Where is the Slow Cooker Green Bean Casserole Recipe? In this post, I will share step-by-step instructions with photos for how to make the green bean casserole, as well as answering FAQs about the recipe and sharing a video. But you can go directly to the recipe by scrolling down to the bottom of the post.

    How To Make Slow Cooker Green Bean Casserole

    green beans in slow cooker

    Step One: Green Beans

    Put three cans of drained green in a slow cooker.

    For this recipe, I used canned green beans but about five cups of fresh or frozen green beans could be used as well.

    If using fresh green beans, trim and cook them until tender. When using frozen green beans, cook them until tender following the instructions on the package.

    slow cooker green bean casserole ingredients

    Step Two: Soup Mixture

    Put cream of celery soup, milk, Worcestershire sauce, onion powder, garlic powder, and black pepper in a small bowl.

    We use cream of celery soup in our green bean casserole but many of the condensed cream soups would work as well. Choose your favorite or use a combination of soups.

    Many of the recipes for green bean casserole call for cream of mushroom but my family doesn’t like mushrooms. I’ve also made green bean casserole with cream of chicken soup and we like it that way too.

    green bean casserole for slow cooker

    Stir the soup mixture to combine. The ingredients could be added directly to the slow cooker with the green beans making less dirty dishes but it is harder to mix up and to make sure the seasonings are distributed that way.

    slow cooker green bean casserole cream of celery soup

    Add the soup mixture to the slow cooker and gently stir to evenly coat the beans.

    slow cooker green bean casserole cooking

    Step Three: Cook

    Add the cover and cook on low for 4-5 hours or high for 3-4 hours, or until heated through.

    See FAQs below for what to do if your slow cooker green bean casserole looks too soupy when almost done cooking.

    slow cooker green bean casserole with french fried onions

    Step Four: French Fried Onions

    Stir in one cup of French fried onions and then top with the remaining onions before serving.

    See FAQs below for how to brown the French fried onions, if desired.

    slow cooker green bean casserole paper towel

    If you need to put the lid back on the slow cooker green bean casserole, drape a couple of paper towels over the slow cooker before adding the lid. This will help to keep the condensation off of the French fried onions.

    slow cooker green bean casserole with french fried onions on top

    Slow Cooker Green Bean Casserole FAQs

    1. Can this green bean casserole be cooked in the oven instead?

    Yes, bake at 350° for 35 minutes or until hot. Add the French fried onions and bake for an additional 5 minutes, until golden brown.

    2. How can I brown the French fried onions like the oven baked version? Brown the French fried onions in a skillet over medium-high heat for 3-4 minutes before topping the green bean casserole. Otherwise, remove the crock pot insert from the slow cooker, remove the lid and put the crock pot insert in the oven. Bake at 350° for 10 minutes until the French fried onions are golden. Then, return the insert to the slow cooker.

    3. I want to use my slow cooker to save oven space but is there any way to speed up the cooking time? Yes, you can reduce the cooking time in the slow cooker by heating up the green beans and soup mixture in the microwave before adding them to the crockpot!

    4. My slow cooker green bean casserole looks too soupy! What should I do? If the green bean casserole looks too soupy near the end of the cooking time, take the cover off of the slow cooker (fully or partially) to allow some of the liquid to evaporate for the last 1/2 hour.

    5. How can I make this for a large crowd? As long as you have enough room in your slow cooker, you can double or triple the recipe!

    Want More Holiday Dinner Recipes? Try These Next:

    Thanksgiving Pizza

    Thanksgiving Pizza: This Thanksgiving Pizza recipe is the BEST way to eat Thanksgiving leftovers. It has turkey, mashed potatoes, green bean casserole, stuffing and more all in a puff pastry crust!

    Creamy Vegetable Casserole: Creamy Vegetable Casserole is a classic holiday dinner recipe! This cheesy side dish is easy to make and everyone loves it. The veggie casserole has mixed vegetables coated in a creamy sauce, topped with melted cheese and crunchy French fried onions!

    Slow Cooker Cheesy Potato Casserole: Slow Cooker Cheesy Potato Casserole is the ultimate comfort food and the best side dish for holiday parties and potlucks. Topped with French fried onions for more flavor!

    slow cooker green bean casserole

    Slow Cooker Green Bean Casserole

    Slow Cooker Green Bean Casserole is the EASIEST way to make this classic side dish. Plus, cooking green bean casserole in a crockpot frees up oven space!
    4.53 from 92 votes
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    Prep Time: 5 minutes minutes
    Cook Time: 3 hours hours
    Total Time: 3 hours hours 5 minutes minutes
    Servings: 9
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    Equipment

    7QT Slow Cooker
    Stir Fry Spatula
    Glass Mixing Bowl Set
    Piano Wire Whip

    Ingredients

    • 3 cans 14.5 oz green beans
    • 2 cans 10.5 oz cream of celery soup
    • 1/2 cups milk
    • 1/2 teaspoon Worcestershire sauce
    • 1/2 teaspoon onion powder
    • 1/4 teaspoon garlic powder
    • 1/4 teaspoon black pepper
    • 1 3/4 cups French fried onions divided

    Instructions

    • Drain the cans of green beans and put them in a slow cooker.
    • In a small bowl, mix together cream of celery soup, milk, Worcestershire sauce, onion powder, garlic powder, and black pepper. Pour over the green beans and gently stir to coat.
    • Cover and cook on low for 4-5 hours or high for 3-4 hours, or until heated through.
    • Stir 1 cup of French fried onions into the green bean casserole. Top with the remaining French fried onion and serve.

    Video

    Notes

    If you prefer to use the oven, bake it at 350°F for 30-35 minutes or until hot.

    Nutrition

    Serving: 1grams | Calories: 167kcal | Carbohydrates: 19g | Protein: 3g | Fat: 8g | Saturated Fat: 3g | Cholesterol: 8mg | Sodium: 449mg | Fiber: 4g | Sugar: 6g
    Cuisine: American
    Author: Tonia Larson

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      Grilled Zucchini

    About Tonia Larson

    Hi! I’m Tonia, the owner and recipe creator at The Gunny Sack, where I’ve shared easy recipes for busy people for 12+ years! My family-friendly meals, easy side dishes, and delicious desserts include mouthwatering photos, dynamic videos, and step-by-step instructions to help you cook at home.

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    Comments

    1. Lisa says

      December 6, 2022 at 4:23 am

      5 stars
      I made this for Thanksgiving using cream of chicken soup like the recipe suggests instead of cream of mushroom and it was a hit! Definitely try this recipe next time you make green bean casserole!

      Reply
    2. Carlie says

      October 16, 2022 at 12:55 am

      5 stars
      Such an awesome and easy dish! Takes even better than the regular green bean casserole.

      Reply
    3. Lidia says

      November 26, 2020 at 10:08 am

      Can you add the fried onions in when adding the soup??

      Reply
      • Tonia says

        November 26, 2020 at 1:29 pm

        Yes you can. They get much softer if you add them right away though.

        Reply
    4. x says

      November 26, 2020 at 5:34 am

      Any recommendations how to adjust the recipe if you’re adding cheese?Let’s say a cup’s worth. Like adding more milk or creamed soup?

      Reply
      • Tonia says

        November 26, 2020 at 9:55 am

        I don’t think you have to make any adjustments if you want to add a cup of cheese. Just go ahead and stir it in! Sounds like a yummy addition! Happy thanksgiving!

        Reply
    5. Mike says

      November 25, 2020 at 1:47 pm

      Much better with cream of mushrooms soup and a cup of chopped portobellos

      Reply
      • Tonia says

        November 25, 2020 at 2:19 pm

        Sounds like a great addition for the mushroom lovers! Happy thanksgiving!

        Reply
    6. Kali says

      November 22, 2020 at 12:25 pm

      Hi! How would I adjust the recipe if I wanted to use fresh green beans? It looks delish!

      Thanks!

      Reply
      • Tonia says

        November 22, 2020 at 1:02 pm

        Hi Kali,
        I would suggest steaming the fresh green beans before preparing the casserole. Three 14.5 oz cans of green beans would be 2 1/4 pounds of fresh green beans.
        Happy thanksgiving!
        -Tonia

        Reply
    7. Kelly says

      November 19, 2020 at 6:03 pm

      Recommendations for baking this recipe? I don’t have the crockpot cooking time.

      Reply
      • Tonia says

        November 19, 2020 at 6:13 pm

        Hi Kelly,
        You can bake it in the oven at 350°F for 30-35 minutes or until hot.
        Happy thanksgiving!
        -Tonia

        Reply
    8. Patty says

      December 14, 2019 at 9:59 pm

      5 stars
      Perfect recipe. Not too soupy and not too dry. I doubled the recipe. The Worcheshire sauce and spices add so much. Thank you!

      Reply
    9. Patty says

      December 14, 2019 at 9:59 pm

      5 stars
      Perfect recipe. Not too soupy and not too dry. I doubled the recipe. The Worcheshire sauce and spices add so much. Thank you!

      Reply
    10. Joanne says

      December 8, 2019 at 1:47 pm

      5 stars
      This is better than the recipe that comes on the box of French fried onions. In fact, it’s excellent! Must be the addition of Worcestershire sauce and garlic powder. Thanks!

      Reply
      • Tonia says

        December 9, 2019 at 10:30 am

        Thanks so much, Joanne! I’m delighted to hear that! ~Tonia

        Reply
    11. Joanne says

      December 8, 2019 at 1:47 pm

      5 stars
      This is better than the recipe that comes on the box of French fried onions. In fact, it’s excellent! Must be the addition of Worcestershire sauce and garlic powder. Thanks!

      Reply
    12. Ginny says

      November 21, 2019 at 11:40 am

      What size crock pot is used for the green bean casserole with 3 cans of green beans? Thank you!

      Reply
      • Tonia says

        November 21, 2019 at 11:49 am

        Hi Ginny,

        I used my 3-quart oval crock pot for 3 cans of green beans. The one that I have is wide and shallow.

        If you don’t have that size, you can make it in a larger one. There will just be more space above the casserole in the slow cooker.

        Happy Thanksgiving!
        ~Tonia

        Reply
        • Ginny says

          November 21, 2019 at 1:42 pm

          Thanks so much, Tonia. Happy Thanksgiving to you and your family!

          Reply
    13. Renee Wagner says

      November 16, 2019 at 10:57 am

      How much time do you add if doubling or tripling recipe?

      Reply
      • Tonia says

        November 17, 2019 at 10:13 pm

        Hi Renee,
        You shouldn’t have to add much time…maybe 1/2 hour to an hour. I would suggest checking it to see if it is hot after cooking it low for 4-5 hours or high for 3-4 hours. Then, add more time if necessary. It is it hot enough, you can turn the temperature down to warm until serving time.
        Happy Thanksgiving!
        ~Tonia

        Reply
    14. D. Monroe says

      November 13, 2018 at 3:18 pm

      5 stars
      Hey, this is a good post! You seem to have covered all the bases. Thanks.

      Reply
    15. D. Monroe says

      November 13, 2018 at 3:18 pm

      5 stars
      Hey, this is a good post! You seem to have covered all the bases. Thanks.

      Reply

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    Tonia Larson and Brian LarsonHi, We are Brian and Tonia Larson! We hope you enjoy our family-friendly meals, easy side dishes, and tasty desserts!
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