If you're a green bean casserole lover AND you're out of oven space...this crockpot green bean casserole is gonna be super handy! It tastes just like the deliciousness that comes out of the oven BUT you've got one less pan to deal with 🙂
Crockpot Green Bean Casserole Topics
A Slight Mod on the Classic Green Bean Casserole
This recipe only has a slight modification from the classic yumminess of French's Recipe. Instead of regular milk, I used evaporated milk. Not because their recipe needed improvement...because those of us that love this classic know it doesn't need that.
Regular milk is a gamble in the slow cooker. I don't know the science behind it. It just doesn't work out through a long cooking process always. Now me personally, I've always had great results with regular milk when I make this Crockpot Potato Soup, but not with many other recipes. It can separate and make a meal that is usually delish, look (and sometimes taste) rather gross.
So I decided to give evaporated milk a shot...and it was a huge success! So if you need to free up some oven space, give it a shot...and Rock that Crock!
Step-by-Step Crock Pot Green Bean Casserole Recipe
The crockpot version is just as easy as the classic!
- Open your green beans and if you're using canned ones, drain them
- Toss all your ingredients in the slow cooker (excluding half the fried onions)
- Mix well and top with the remaining onions
- Cover and cook on low for 6 to 8 hours
I've not tried this recipe on high yet, so I don't know if it will work as quite as well. Let me know if you try it, I'd love to know...and I'll update this recipe once I give it a shot too 🙂
Printable and Pin It for Later for Slow Cooker Green Bean Casserole
Recipe

Crock Pot Green Bean Casserole
Ingredients
- 2 cans cream of mushroom soup
- 12 ounces evaporated milk
- 4 cans green beans drained
- 2 2/3 cups crispy fried onions (2 large canisters)
- Salt and/or Pepper to Taste
Instructions
Slow Cooker
- Add all the ingredients to the crockpot except one canister of fried onions.
- Stir well to combine and top with the remaining canister of fried onions.
- Cover and cook on low for 6 to 8 hours.
Oven-Baked
- Mix the soup and milk in a bowl. Add the green beans and one canister of the fried onions. Stir well.
- Pour into a 9x13 oven-safe dish. Bake in a preheated 350 degree oven for 30 mins.
- Top with remaining fried onions and bake for 5 to 10 minutes.
Freezer Meal
- Label a 1-gallon freezer bag with the name and date.
- Pour 1 canister of fried onions into a sandwich bag, remove as much air as possible, and set aside.
- Pour the soup and milk into the labeled bag. Close and knead to mix. Open and add the drained green beans and the remaining canister of fried onions. Close and gently knead to mix. Open bag and drop in the sandwich bag. Close while removing as much air as you can. Freeze for up to 6 weeks.
- To Cook1. Defrost in the freezer overnight.2. Remove the sandwich bag of fried onions. 3. Pour green bean mixture into a buttered/oiled slow cooker insert or baking dish.4. Follow the directions above for cooking and adding the remaining fried onions.
Main Dishes This Crockpot Green Bean Casserole ROCKS!
- 3-Ingredient Crockpot Ranch Pork Chops
- Bacon Maple Garlic Crock Pot Pork Loin
- Crock Pot Beef and Noodles
- Pineapple Glazed Pork Loin Crock Pot Recipe
Can it be cooked on high?
Yep. For about 4 hours for the large batch. If you half it I'd check it at about 3. 2 1/2 if you know your crockpot runs hot.
What size can of milk did you use?
It's a 12-ounce can. I am just about to update the recipe. Sorry about that 🙂
Can fresh green beans be used? Is the evaporated milk a 5oz or 12oz can? Thanks in advance!
Someone else asked about the size of the canned evaporated milk...I completely forgot there was a 5 ounce can in existence. I will correct the recipe.
But in response to your questions. Yes on the fresh green beans. You might need to cook it a little longer though, depending on if you prefer them a bit crunchy or not...my mother-in-law prefers them that way. But I'd taste test to make sure you are happy with them.
And the milk is a 12-ounce can. Best of luck!
I am going to try this on Thursday for Thanksgiving. I noticed that in one of the pictures the ingredients were all separate in 3 rows. Do you mix everything together, or place in crock pot like the picture?
Mix everything except one can of the fried onions then sprinkle those over the top.
Can you use frozen green beans?
You sure can. You'll need to defrost them first, but absolutely.
What size of can of evaporated milk?
The only size I am aware of is about 12 ounces. Those are the sizes I use.
EDIT!...I completely forgot that a 5-ounce can exists! I will edit the recipe. Thank you 🙂
Do the fried onions on top still get crunchy doing it in the crockpot?
Semi-crunchy. The ones of the very top did for me.
Do you put the second container of fried onions on top when it’s almost done or before you start cooking it?
I put them on before I started cooking. But if you wanted them to stay crispier you could put them on in the last hour.
Can I mix it the night before and store it ?
You bet! I just did it myself. Keep out the onions that go on top and cook it tomorrow morning 🙂
I am making a double batch for a large group. How should I adjust timing? Do you see any difference in texture if it’s cooked on High/4 hours or Low/8 hours? Sorry to bother you on a Thanksgiving!
Hey Meg, no worries. My turkey is cooling at the moment so my hands are clean 🙂
I have not cooked a double batch on high. I'm gonna guess your best route would be to reserve the onions that go on top and watch the edges for any browning. Stir it if it starts to brown OR about an hour before serving...then toss the last of the onions on top.
That is what I'd try. I can't guarantee it'll work since I haven't done it. Best of luck and Happy Thanksgiving 🙂
Ever tried adding pieces of chicken in it? Was think about doing that and wasn’t too sure how it would turn out
You bet Elizabeth! You can add diced chicken breasts or thighs, cut into about 1 inch pieces. I've also added mushrooms in with the chicken and then shredded cheese over the top. I don't remember what kind. It needed to cook the max time in my crock. So FYI if you try it. Best of luck 🙂
What size crock pot should I used to make it in? Can I use a 4 quart crock pot?
You absolutely can. I made this recipe in a 4 quart.
Can I use regular milk instead of evaporated milk? Also if the answer is no can you please explain because I am new to this.
My answer isn't no. My answer is "I don't know". I've never tried it. I'm guessing you CAN, but that it just won't be as creamy. If you try it, can you let me know if it works please? If you decide not to, I might try it myself 🙂
If I use 6 cans of green beans, how much soup and milk should I use?
I used the little slider for servings to get these figures (it's at the top of the printable recipe). It says 3 cans of soup, 20 ounces evaporated milk and 4 cups crispy onions. That being said you might want to use just a little less milk when mixing. Like about 1/2 cup less and add more as needed. You can always add more if you think it's too thick, but it takes a lot if you get it too soupy.
First of all, I made this for Friendsgiving and it was a huge hit!! Many people said it’s better than the “classic” version . I can’t pin point exactly why, but I agree!
Secondly, have you ever tried this recipe with cream of Chicken Soup by chance?? (My fiancé wouldn’t even try it because he doesn’t like mushroom soup *rolling my eyes*)
I'm very glad you guys all enjoyed it so much. That is awesome.
I personally haven't tried it with cream of chicken but I've been told it works great. Maybe I will over Christmas. As my father-in-law and your fiance seem to be kin spirits. And agreed on the eye roll as well.
If you try it before, let me know how it turns out if you've time please.