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Free up the oven this holiday season with this Crockpot Green Bean Casserole Recipe. It turns out amazing and is one less dish to worry about. It’s so easy that you’ll make this slow cooker green bean casserole recipe every time.
Every Thanksgiving we have to have the classic green bean casserole on the menu. I mean, is it really Thanksgiving without it? It is the perfect side dish with Slow Cooker Turkey Breast and Crockpot Spiral Ham.
Hi,
I made this recipe it was so good.
The only thing I added was a 1 teaspoon of worchestershire, some mushrooms and seasoning.
I like it better in the crockpot vs the oven, and it is so much easier to transport to a gathering vs having to cook it in the oven and trying to keep it warm.
Thank you for the recipe!
-Sherri S
The slow cooker version is my secret weapon for busy holidays because it saves oven space, packed with flavor and keeps the casserole warm until serving. It’s easy, reliable, and always a crowd-pleaser, truly the perfect holiday side! The results were perfection. If you prefer to use the Instant pot, we also have an Instant Pot Green Bean Casserole Recipe.
Ingredients
- Green Beans – We used canned green beans. Make sure to drain them
- Cream of Mushroom Soup – Use can or make Homemade Cream of Mushroom Soup Recipe
- Milk – Use milk of choice
- Spices – Salt and Pepper
- French Fried Onions – The crunchy topping
Scroll to the recipe card for the full recipe details.
How to Make Crockpot Green Bean Casserole
Step 1. In a medium mixing bowl, combine the cream of mushroom soups, milk, salt and pepper. Stir the creamy mushroom sauce mixture well.
Step 2. Add in the green beans and half of the French fried onions. Gently Fold to combine.
Step 3. Spray your crock pot with non-stick cooking spray. Pour the green bean mixture in the crockpot.
Step 4. Add the lid and cook on low for 2-3 hours. You can also cook on high for 1 hour.
Step 5. Remove the lid and sprinkle with the remaining french fried onions and serve!
Crockpot Green Bean Casserole
Ingredients
- 3 cans cut green beans (14.5 oz can each – drained)
- 2 cans cream of mushroom soup (10.5 oz each)
- ⅓ cup milk
- ½ teaspoon salt
- ½ teaspoon pepper
- 6 ounces French Fried onions
Instructions
- In a medium mixing bowl, whisk together the cream of mushroom soups, milk, salt and pepper until combined.
- Gently stir in the green beans.
- Mix in half of the French fried onions (approximately 3 ounces).
- Spray your crock pot non stick spray.
- Spread the green bean mixture into a single layer in the bottom of the crock pot.
- Cover and cook on low for 2-3 hours or on high for 1-1.5 hours.
- Remove the lid and sprinkle with the remaining french fried onions.
- Serve immediately and enjoy!
Recipe Video
Recipe Notes
- Cooking Time – Since this is a crockpot recipe, it does have a little longer cooking time than traditional green bean casserole. Keep that in mind when you’re planning out your dishes.
- Prepping Casserole – I like to go ahead and prep and get this green bean casserole going first thing. If needed, you can always switch it to warm
- Double Recipe – This casserole dish will easily hold double the recipe (or even triple!) which makes it perfect when serving a crowd.
- Change the Cream of soup – If you’re not a cream of mushroom soup fan, switch it out for cream of chicken soup or cream of celery.
- Use Frozen or Fresh Green Beans – You can use fresh or frozen green beans. I do recommend that you let the frozen green beans thaw slightly before placing them in the crockpot. Otherwise, they tend to make the green bean casserole a little too watery.
- Make it Cheesy – Use canned cheddar soup in place of the cream of mushroom for a cheesy green bean casserole or add in shredded cheddar cheese.
- Top with parmesan cheese – Parmesan cheese is a great addition to green bean casserole. Sprinkle about ½ cup on top when you top with the extra fried onions to jazz up this classic casserole.
- Add more Seasonings – I like to keep this recipe very simple with the ingredients. However black pepper, onion powder, garlic powder, or even Worcestershire sauce are great additions to this easy recipe.
Nutrition Facts
Can you Brown the Fried Onions?
I usually don’t mess with browning the fried onions but you definitely can if you prefer. There are 2 ways that you can brown the fried onions on top of this green bean casserole.
First, if you have an oven safe crock pot insert (with no plastic on it). You can remove the insert and broil the casserole for 2-3 minutes to brown the onions on top.
The second option is to brown the fried onions in a small amount of butter in a skillet over medium heat. Then place them on top of the casserole in the crock pot.
How to Store
If you have any leftovers, store them in an airtight container in the fridge for up to 4-5 days.
It’s best reheat in the oven to make the fried onions crispy again but you can heat them up in the microwave as well.
Frequently Asked Questions
Yes, this can be made ahead of time. Mix together the ingredients in a bowl, cover and refrigerate for up to 3 days.
I prefer canned green beans in this recipe but you can easily use fresh or frozen. If fresh, make sure to trim them first. You will need approximately 3 cups of green beans and I would cook on low for 4-6 hours or on high for 3 hours until the beans are tender. Fresh or frozen green beans take longer to cook in a crock pot.
After the green bean casserole is done cooking you can keep this on warm for up to 3 hours. That makes this recipe great for Thanksgiving and Christmas dinners.
If you find your casserole to be runnier than you’d like, remove the lid and cook for 30 minutes without the lid. That will help thicken the casserole.
More Easy Crock Pot Recipes
Easy Side Dishes
Crock Pot Sweet Potatoes
All Recipes
Crock Pot Corn Casserole Recipe
Easy Slow Cooker
Crockpot Cheesy Potatoes Recipe
Easy Slow Cooker
Crock pot Tator Tot Casserole Recipe
We love to hear from you. If you make this Crockpot Green Bean Casserole Recipe, please leave us a comment.
What size of crockpot (slow cooker) do you use for this? Would that hold a double recipe?
I used a 6 quart crock pot and yes, it would easily hold a double batch of this casserole. Let me know what you think once you try it out!
Can I use cream of mushroom condensed soup instead of cream of mushroom soup?
Yes — you can use cream of mushroom condensed soup instead of cream of mushroom soup, because they are essentially the same product. If the recipe calls for 1 can of cream of mushroom soup, use 1 can of condensed cream of mushroom soup straight from the can. Hope this helps!
Will one batch of your homemade cr of mushroom soup be enough for one batch of your gr bean casserole recipe? Do I still add the 1/3 cup milk when I add the homemade mushroom soup to the gr bean casserole recipe?
Shylo – I would make a double batch of the homemade cream of mushroom soup and you would like need the milk if making the homemade version. I hope you enjoy this recipe!
Hi,
I made this recipe it was so good.
The only thing I added was a 1 teaspoon of worchestershire, some mushrooms and seasoning.
I like it better in the crockpot vs the oven, and it is so much easier to transport to a gathering vs having to cook it in the oven and trying to keep it warm.
Thank you for the recipr
Does the cream of mushroom soup have to be condensed?
Yes, it does for this recipe.
If I want to use fresh green beans how much do you think I would need?
I would use about 2 pounds fresh green beans, trimmed.
Question..Do I increase the cook time if I double or triple the recipe? Thank you!
I would increase it by about an hour.
We don’t drink milk and I don’t want to buy any just for this one thing. Do you think I could sub with sour cream? Thanks 🙂
Yes I think you could.
How long would you cook a double recipe?
If you double the recipe, cook on low for 3-4 hours or on high for 1.5-2 hours until it cooked through to ensure that the inside of the casserole is cooked through.
What is I want my onions crispy?
If your crock pot liner is oven safe, remove the crock pot liner from the crock pot after the cook time and broil it uncovered for 3-5 minutes until the onions are crispy on top.
I used fresh beans and they didn’t cook enough and were too crunchy and it was on the watery side. I think blanching them first would have been helpful.
Delicious and so easy to make in the crockpot!
December24,2020. This Green Bean Casserole has been prepared for tonight’s Christmas dinner and it turned out perfect. I rate this recipe a 5 Star
my oven broke!! in process of getting a new one , want to use this recipe for frozen green beans! Wonder if I’m able to use frozen green beans? Im just thinking would it be watery using the frozen!
Ashley – I haven’t tried that yet, but I think it would work. Let me know how it turns out!