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!
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.
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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
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.
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.
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.
Add the soup mixture to the slow cooker and gently stir to evenly coat the beans.
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.
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.
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 FAQs
1. Can this green bean casserole be cooked in the oven instead? Yes, bake at 350˚F 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˚F 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: 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!
Fresh Green Bean Casserole from Alton Brown: A classic made modern and fresh, Alton ditches the traditional cream of mushroom soup and canned green beans, instead of using real mushrooms, half-and-half, and fresh green beans.
Cheesy Green Bean Casserole from Paula Deen: The classic green bean casserole gets a cheesy update with this recipe.
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
Ingredients
- 3 cans (14.5 oz) green beans
- 2 cans (10.5 oz) cream of celery soup
- 1/2 cups milk
- 1/2 tsp Worcestershire sauce
- 1/2 tsp onion powder
- 1/4 tsp garlic powder
- 1/4 tsp 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.
Joanne says
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!
Tonia says
Thanks so much, Joanne! I’m delighted to hear that! ~Tonia
Ginny says
What size crock pot is used for the green bean casserole with 3 cans of green beans? Thank you!
Tonia says
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
Ginny says
Thanks so much, Tonia. Happy Thanksgiving to you and your family!
Renee Wagner says
How much time do you add if doubling or tripling recipe?
Tonia says
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
D. Monroe says
Hey, this is a good post! You seem to have covered all the bases. Thanks.