Slow Cooker Green Bean Casserole is the easiest way to make everyones favorite Thanksgiving side dish!  Make using fresh or canned green beans!

slow cooker green bean casserole

I originally posted this recipe back in November 2016, the recipe stays the same, we’ve added some updated instructions and new photos!  It’s definitely safe to say that green bean casserole is my favorite side dish at Thanksgiving and Christmas. This is more of a classic, using canned green beans and soup.  If you’re here looking for a homemade version, be sure to try our baked Green Bean Casserole from scratch!

Slow Cooker Green Bean Casserole:

This recipe works out perfectly with fresh, or canned green beans and I’ve given directions for both in the recipe card.  You can also use frozen if you want, but, you’ll have best results if you thaw them first.  Throwing them in frozen seems to make the casserole watery.  What I love so much about this is that I can mix everything up right in the slow cooker, put on the lid, and then just top with extra french fried onions about 30 minutes before serving.

green bean casserole in slow cooker

Recipe Tips:

  • Plan ahead!  This recipe takes 2 hours on low in the crockpot, plus another 30 minutes after you top with the french onions.
  • You can make this in advance.  Simply mix everything together in a large mixing bowl, cover with plastic wrap and refrigerate for up to 3 days.
  • If you absolutely hate cream of mushroom soup, then cream of chicken or even cheddar cheese soup work great here as well.
  • The cheese is optional!  We love the cheddar and parmesan, but you can leave them out if that’s your preference, or sub in your favorite kind of cheese.

photo of green bean casserole made in slow cooker

 

Enjoy!  Don’t forget to follow me on Facebook to see all of the yummy recipes and videos we share every day!

~Nichole

photo of green bean casserole made in slow cooker
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5 from 46 votes

Slow Cooker Green Bean Casserole

By Nichole
Slow Cooker Green Bean Casserole is the easiest way to make everyones favorite Thanksgiving side dish!  Make using fresh or canned green beans!
 
Prep 10 minutes
Cook 3 hours
Total 3 hours 10 minutes
Servings 10

Ingredients 

Instructions 

  • In your crockpot combine the cream of mushroom soup, sour cream, milk, and seasonings, and whisk to combine.  
  • Stir in the green beans, cheddar, parmesan, and half of the french fried onions.  Place the lid on your crockpot and cook on low for 2 hours.
  • After two hours stir the casserole well and add the remaining french fried onions to the top.  Replace the lid and continue cooking for 30 minutes, up to one more hour.  

Notes

NOTE: The cheese in this recipe is optional, you can leave it out if desired without making any other adjustments.
MAKE AHEAD:  This casserole can be mixed up in a large bowl, covered, and stored in the refrigerator for up to 3 days before cooking.
NOTE:  After cooking this casserole can be left in the crockpot on warm for up to 2 hours.
NOTE ON GREEN BEANS:  If you are using fresh or frozen green beans instead of canned I recommend using a total of 24 ounces or 1.5 pounds total. If using frozen green beans, thaw them first.

Nutrition

Serving: 1.5Cup, Calories: 150kcal

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Side Dish
Cuisine: American
Like this? Rate & review this recipe below!

 

 

 

 

Hey! Nice to meet you! I'm Nichole!

Welcome to The Salty Marshmallow! I'm a mom, animal lover, photographer, & kitchen mess-maker. Here you will find the result of my decades-long passion for chasing the best flavors in the kitchen, all meant to be cooked by regular people with busy lives just like you and me.

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46 Comments

  1. 5 stars
    Just made this for my family as apart of our Thanksgiving Dinner and wowza what a delicious recipe!! Thank you Thank you!! So easy to prep and make!! This one is going in my recipe box for future use 🙂

    Reply

    1. Hi! They do crisp up some. If you want them super crispy you will want to toast them in the oven for a few minutes then top the casserole 🙂

      Reply

  4. Hi, I plan to try this for our square dance camping Thanksgiving get-together! It is so different from the usual recipe and made in a crockpot no less! So glad to see I can use french style green beans as that’s what I have on hand! Thank you.

    Reply

  5. Making this as a side dish for dinner tonight. This is also my favorite Thanksgiving side dish so I thought to make it tonight in January lol. I’m sure it will be delicious! Thanks! (I didn’t have sour cream so i just left it out)

    Reply

  7. I was considering using a can of Campbells condensed cheddar in addition to the mushroom andinstead of the shredded cheddar. Any thoughts ? Thanks

    Reply

    2. 5 stars
      I habent tried the yet but me week I’m going to make 2 batches of this in my 2 quart slow cooker. Thank you! Also nice name! 😉

      Reply

  8. 5 stars
    This was Delicious! I’m making for our church’s Thanksgiving dinner, but tried it on my family 1st. Everyone liked it, except the 2 guys who do not eat greenbean cass at all. I will cut back on the milk and black pepper a smidge and add more cheddar. But it was so easy and tasted Fabulous! Thank you Nichole!

    Reply

  9. 5 stars
    This was Delicious! I’m making this for our church Thanksgiving dinner. So i tried it out on my family 1st. It was a but soupy, so i may cut back on the milk a smidge and add more cheddar. I may cut back on the black pepper a little, as well. But it was so Easy! Thank you!

    Reply