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Crockpot Green Bean Casserole

Classic crockpot green bean casserole just got easier to make this holiday season! It’s quick to prep then hand off in the slow cooker saving you both oven space and less dishes to wash.

green bean casserole in crock pot
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Slow Cooker Green Bean Casserole

Any Thanksgiving menu is not complete without a creamy, savory, green bean casserole! This casserole recipe is an alternative to crispy tender green beans which has become a traditional side for Christmas dinner as well as a Thanksgiving side dish.

It’s classic comfort food that has just a few ingredients and the slow cooker takes the time and pressure off so you can focus on the main event. We also love these bacon wrapped green bean bundles!

Serve alongside an oven roasted turkey or baked ham for a delicious holiday meal that your family will love!

green bean casserole mixture in casserole

Easy Dump-and-Set Side Dish

A dump-and-set dish means that once you grease the crockpot, you place all the ingredients in, starting with the beans, then combined broth and soup, add in the seasoning and butter, you close the lid, set it, and walk away. That’s it!

Tips for Success

  • Make sure to grease the crockpot first to prevent sticking once it’s ready.
  • Drain the canned beans. Too much extra liquid will make for a soggy dish.
  • Save the French fried onions to top it off just before serving. They won’t stay crispy if you add it right into the crockpot.
  • Easily double the recipe for a crowd. The cooking time remains the same.
  • For a bit of added flavor and texture add in sliced mushrooms and onions.
  • If you’re going to add cheese, add it in towards the end or along with the crispy fried onions. Cheddar and parmesan are both great choices.
  • Keep it warm for up to 2 hours until you’re ready to serve.
green bean casserole in slow cooker


Can I use fresh or frozen green beans?

You can! If using fresh, you’ll want to use more because a can holds more beans as they are softer sitting in liquid. Don’t forget to wash and trim the ends.
If using frozen, be sure to thaw them first. You don’t want all of that excess liquid.

Can I make this ahead of time?

If you’re planning ahead and want to prepare this dish the day before, you can. Assemble the casserole in the crockpot as instructed, cover with foil, and place in the fridge. The following afternoon, set the cooking time.

How long can I keep the casserole on the warm setting?

Up to two or three hours which makes it perfect for Thanksgiving or Christmas dinner!

How to avoid the green bean casserole from being soup?

If you find that your casserole is soupier than you would like, remove the lid for 30 minutes to help thicken it.

How to store leftovers?

Store in the refrigerator in an airtight container for up to 4-5 days. Reheat in the oven for crispy fried onions or in the microwave.

green bean casserole in crock pot

More Crockpot Side Dishes:

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green bean casserole in crock pot

Crockpot Green Bean Casserole

4.50 from 2 votes
↑ Click stars to rate now!
Author: Jamielyn Nye
One of the most popular holiday side dishes just got easier! Made with just 5 simple ingredients, this creamy, comforting crockpot green bean casserole is always a hit!
Prep Time: 10 minutes
Cook Time: 2 hours
Total Time: 2 hours 10 minutes
Servings: 8


  • 45 ounces green beans , 3 cans drained
  • ½ cup chicken broth , more if needed
  • 10 ounce can cream of mushroom
  • 1 Tablespoons salted butter , sliced then
  • 1-2 cups french fried onions

S&P, to taste


    • Butter the bottom of a 3-4 quart crockpot if desired. Then pour in the drained green beans.
    • Whisk together the cream of mushroom and chicken broth. Then pour on top of green beans. Sprinkle the top with salt and pepper. Place slabs of butter across the top.
    • Cook on low for 2-3 hours or high for 1-2 hours. Stir half way through and add more salt and pepper to taste. Top with french fried onions just before serving.


    Variation: This recipe is easy to double for a crowd. You can also add 1/2 cup sliced mushrooms and onions, if desired. 
    To prepare in advance: If you want to prepare this dish the night before, simply pour the prepared mixture into the crockpot dish and cover with foil. Cook in the afternoon as instructed. 


    Serving: 0.5cup | Calories: 125kcal | Carbohydrates: 17g | Protein: 3g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 5mg | Sodium: 270mg | Potassium: 481mg | Fiber: 5g | Sugar: 6g | Vitamin A: 1147IU | Vitamin C: 20mg | Calcium: 65mg | Iron: 2mg

    Nutrition provided is an estimate. It will vary based on specific ingredients used.

    Course: Side Dish
    Cuisine: American

    Did you make this recipe? Don’t forget to give it a star rating below!

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