Easy Crockpot Green Bean Casserole

Name: Easy Crockpot Green Bean Casserole
Prep time: 5 min
Cook time: 120 min
Total time: 125 min
Ingredients: 3 cans cut green beans, drained ((14.5 oz. each) may also use French cut canned or frozen green beans. ); 2 cans cream of mushroom soup ((10.5oz. each) may also use cream of celery soup); ½ cup milk (whole or 2%); ¼ teaspoon kosher salt; ¼ teaspoon black pepper; ¼ teaspoon onion powder; 1 can French-fried onions ((6oz. can))

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Make room in your oven this holiday season. Cook a creamy and tender green bean casserole in a crockpot!

This Slow Cooker Green Beans recipe is easy to make. You can focus on other meal prep while the flavors develop in the crockpot.

A white plate with a serving of green bean casserole with fried onions made in a slow cooker. — An easy way to have our favorite Onion Mushroom Green Bean Casserole is to make it in a crockpot..

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❤️ Why you'll love this recipe
🛒 Ingredients
🗒 Instructions
🔪 Equipment
🤔 FAQs
👩🏻‍🍳 Tips
📚 Variations
🥫 Storage
📗 Related Recipes
🍽 Serve with
📞 Chiacchierata (chat)
📝 Recipe Card
📖 Recipe
💬 Comments

❤️ Why you'll love this recipe

Crockpot green beans is a classic holiday dish, saving you space in the oven to cook other side dishes and main meals.
This recipe is extremely quick and easy to prepare while the slow cooker does all the work!
Make easy adjustments to this holiday side dish with ingredient additions and spic swaps.

With just 7 ingredients and 5 minutes of prep, anyone can make this irresistible green bean casserole for the holidays for any time of the year!

🛒 Ingredients

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Note: The full list of this recipe ingredients with their amounts and options are listed in the recipe card below.

🗒 Instructions

Note: This is an overview of the instructions. The full instructions are in the recipe card below.

First four steps to making Slow Cooker greens beans with cream of mushroom soup.

Prepare the crockpot by spraying it lightly with non-stick cooking spray. Drain the green beans and add them to the pot.
In a medium mixing bowl, whisk the cream of mushroom soup, milk, and seasonings until smooth.
Pour the soup mixture over the green beans in the crockpot and mix gently.
Add half of the French fried onions into the crockpot.

Final steps five and six to making the green bean with cream of mushroom soup with French Fried onions in a crockpot.

Gently fold in the French fried onions into the green bean mixture. Seal the crockpot and cook on low for 2-3 hours or on high for 1 hour.
Once cooked, sprinkle the remaining fried onions over the top of the green bean mixture and serve immediately.

🔪 Equipment

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You’ll need the following items to make this recipe successfully.

🤔 FAQs

These are the questions we are most frequently asked about making an easy cream of mushroom green bean casserole recipe in a crockpot.

How do you prevent green bean casserole from being runny?

A thickener such as a cornstarch slurry can be added to the green bean casserole before topping the casserole with the remaining French fried onions.

Can you make green bean casserole the night before?

Absolutely! Cook the casserole the night before and store the slow cooker inner pot with lid in the refrigerator once the casserole has cooled. Leave the French fried onions off the top of the casserole until you’re ready to reheat this dish just before serving.

Can I make green bean casserole ahead of time and refrigerate it?

Yes. Cook the casserole as directed, leaving the French fried onion topping off and store in the refrigerator. Reheat and add the crispy French fried onions just before serving.

How do you cut green beans for casserole?

Make a uniform pile of fresh green beans and line up the ends, cutting them off. Do the same with the other side of the pile. Cut the trimmed green beans into bite-size pieces and proceed with the recipe.

A black crockpot with a cream of mushroom green bean casserole topped with fried onions on top. — When the oven is busy cooking up dinner, slow cooker green bean casserole is a meal saver.

👩🏻‍🍳 Tips

If you don’t have a slow cooker, make this casserole in a 9x13-inch casserole dish and bake in the oven at 350F for about 20-30 minutes.
Spraying the crockpot with non-stick cooking spray ensures that none of the ingredients stick to the pot while cooking and burn.
I don’t brown the fried onions before adding to the green bean mixture but you can if you’d prefer.
If you’d like to brown the French fried onion topping before serving and have an oven-safe inner pot lining with no plastic parts, add the pot to the oven set to broil for 2-3 minutes.

📚 Variations

Instead of cream of mushroom soup you could use cream of celery soup instead.
I’ve used simple seasoning in this recipe but you could experiment with other types of seasoning and spices such as Italian seasoning or add a kick of heat to the dish with red chili flakes.
Make this green bean casserole more decadent by folding in some shredded parmesan cheese and bacon into the creamy green bean mixture.
I’ve used canned green beans for convenience but you can also use fresh green beans (washed and trimmed) or frozen green beans that are first defrosted and drained of excess liquid.

A fork taking a bite of slow cooker green bean casserole. — We love those crunchy fried onions that tops our creamy mushroom crockpot green bean casserole.

🥫 Storage

Leftover crockpot green beans can be stored in an airtight container in the refrigerator for up to 4 days. I don’t recommend freezing this dish. Green beans usually don’t freeze well, and the crispy French fried onions will get soft.

Looking for similar holiday recipes to add to the menu? Try these:

Roast Turkey - succulent roast turkey with a spicy flavored brine, loaded with intense flavor!
Potatoes Au Gratin - my family’s go-to holiday side dish that’s so simple yet decadent.
Italian Sausage Stuffing - savory and delicious Italian sausage stuffing that’s perfect for Thanksgiving or pork and chicken throughout the year.
A beautiful and colorful salad side is our Fall Harvest Salad Recipe. This delicious vegetable side would be ideal on the holiday dinner table.
If you want to serve soup as a first course, try Crockpot French Onion Soup! It has cheesy bread, beef broth, and sweet onions. These ingredients simmer slowly for amazing flavor.

🍽 Serve with

Serve this crockpot green beans with Thanksgiving turkey, holiday roasts, and other holiday-inspired side dishes.

📞 Chiacchierata (chat)

Green bean casserole is a must-have at our family meals for Thanksgiving and Christmas. It’s also a great midweek side dish or main meal when you add meat! I made this simple and rich dish in my trusty crockpot. This saves space in the oven for other recipes!

Tutti a tavolo, è pronto!

A stack of white plates with the top plate holding a fork and a serving of French fried onion topped green bean casserole made with cream of mushroom soup. — It just wouldn't be a holiday meal without our crockpot green bean casserole with cream of mushroom soup.

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📝 Recipe Card

Crockpot Green Beans is a delicious alternative to traditional baked green bean casserole. Loaded with creamy green bean mixture and French fried onions, anyone can make it for the holidays!

If you love this recipe please give it 5 stars ⭐️⭐️⭐️⭐️⭐️.

📖 Recipe