ULTIMATE BEAN GREEN CASSEROLE. Featured in magazines across the web and consistently rated THE best green bean casserole recipe EVER, this will convert even the most determined green bean haters! Tender green beans, bacon, cheese, cream, mushrooms and more, this deluxe green bean casserole is made from scratch and is guaranteed to become your go-to from now on! We promise!
Green Bean Casserole:Â The quintessential American side dish for family gatherings, holidays, church socials, potlucks…the recipe clipping that virtually every American woman has had lying somewhere at some point throughout the past gazillion decades. Â Only this one is different.
This one’s the best. Â Ever.
And it’s made from scratch.
If up until now you’ve just been kind of “meh” towards green bean casserole, prepare to experience a major paradigm shift in attitude. Â This isn’t your Aunt Betsy’s green bean casserole recipe.
I developed this recipe years ago when I had about two pounds of fresh organic green beans and some fresh mushrooms that I needed to use up. As I browsed through my fridge I also noticed some thawed bacon, a block of white cheddar, and some half-and-half cream. The wheels started turning as the blueprint for the ultimate green bean casserole recipe unfolded in my mind. And the rest is history.
This ultimate, from scratch green bean casserole has since become one our most popular recipes every Thanksgiving and Christmas. Multiple websites have praised it and online magazines have linked to it. But most importantly of all, year after year our readers have fallen in love with it. Just read all the rave comments below. Without exaggeration this green bean casserole has literally become world famous. Yes, it’s THAT good!
Even passionate green bean and green bean casserole haters have consistently been converted through this recipe. My brother included. My brother has hated green beans ever since he was old enough to say the word. And he has never once relented. But…he ate this.  He ate THIS!  He ate it…and he liked it!  And as far as I’m concerned that seals the deal. Verdict drawn.
Yes. The ULTIMATE Green Bean Casserole.
This recipe take a little longer than the 2 minutes and 38 seconds required to open a can of condensed mushroom soup, mix it with water, toss it with green beans, dump the mixture into a casserole dish, sprinkle with French fried onions, and put it in the oven to bake (ie, the classic recipe first introduced by Campbell’s in 1955). Â But this Ultimate Green Bean Casserole is still quick to make and to say that there is no comparison between the two is the understatement of the century. Â This isn’t called “ultimate” for no reason and we’re confident you’re going to love it as much as we and thousands of others do!
Can I Make Gluten Free Green Bean Casserole?
Yes! You can substitute gluten free flour for thickening the sauce. Alternatively you can dissolve 1 1/2 tablespoons of cornstarch in the chicken stock and then proceed with melting the butter, then adding the half and half and chicken stock/cornstarch, and whisking continually as it simmers until it’s thickened.
For the onions you can use gluten free French fried onions.
Can You Freeze Green Bean Casserole?
We do not recommend it. Creamy sauces have a tendency to break and separate when they’re frozen and thawed and the last thing you want is a watery mess at your dinner table.
Can Green Bean Casserole Be Made Ahead of Time?
Yes! Prep everything and place it in the casserole dish, except for the French fried onions, cover and refrigerate for up to a day before you’re ready to serve it. When you’re ready to bake it, take it out of the fridge and let it sit at room temperature for about 30 minutes. Then sprinkle on the French fried onions and proceed with baking.
This also makes it convenient to bring the assembled casserole (minus the French fried onions) to another location where you’ll be having dinner and then simply add the onions and bake the casserole once you arrive.
The Ultimate Green Bean Casserole Recipe
This recipe begins by frying up bacon along with onions, mushrooms, and garlic. Next we make a roux with butter and flour which will not only serve as a thickener for the cream sauce but will add wonderful depth of flavor. Next we pour in the cream followed by that glorious white cheddar and watch it melt into a rich, luxuriously delicious sauce. Fresh green beans are then folded in the sauce, the mixture is poured into a casserole dish and topped with crispy, crunchy, utterly irresistible French fried onions. It’s baked until bubbly and oozing and then served at the table where it will completely disappear, every last drop of it, within minutes.
Let’s get started!
Fry the bacon in a large skillet over medium-high heat until crispy.
Add the onions and cook for 4-5 minutes until soft and translucent.
Add the mushrooms and garlic and cook for 4-5 minutes until the mushrooms are soft. Â Transfer the bacon/mushroom mixture to a bowl and set aside.
Melt the butter in the same skillet, add the flour, and whisk until combined.
Continue whisking for another minute until the mixture has slightly deepened in color. This will add flavor and cook off the “flour” flavor.
Whisk in the half-and-half and chicken stock and continue to whisk, letting the mixture simmer, until it has slightly thickened.
Whisk in the white cheddar cheese until combined. Add the bacon/mushroom mixture and stir to combine.
Add the salt and pepper. Let the sauce simmer for a couple of minutes, stirring frequently.
Add the blanched green beans and stir to thoroughly combine.
Pour the bean mixture into a 9×13 inch casserole dish.
Sprinkle all of the French fried onions evenly over the casserole.
NOTE:Â Since everything but the French fried onions that go on top is made from scratch, choose some quality ones and avoid using those nasty hydrogenated-oil-packed French fried onions (of course you also have the option of making them yourself!). There are better options out there. Â I had two in my pantry to choose from. Â I went with Lars’ Crispy Onions this time (the 3-pack is the best deal).
Bake, uncovered, for 30 minutes in an oven preheated to 350 degrees F.
Let the casserole sit for about 5 minutes before serving.
ENJOY!
For more delicious side dishes be sure to try our:
- BEST Au Gratin Potatoes
- Ultimate Corn Pudding
- Zucchini Au Gratin
- Yorkshire Pudding
- Mashed Potatoes and Parsnips with Horseradish
- Brunede Kartofler (Danish Caramelized Potatoes)
- Baked Endives with Ham and Bechamel
- Roasted Brussels Sprouts with Cranberries, Bacon and Balsamic Reduction

ULTIMATE Green Bean Casserole
Ingredients
- 3 slices thick-cut bacon , diced
- 1/2 cup finely chopped yellow onion
- 2 cloves garlic , minced
- 12 ounces fresh button or cremini mushrooms , chopped
- 3 tablespoons butter
- 3 tablespoons all-purpose flour
- 1 cup half-and-half
- 1 cup chicken broth
- 1/2 cup shredded white cheddar cheese
- 3/4 teaspoon salt
- 1/4 teaspoon freshly ground black pepper
- 1 pound fresh green beans , trimmed, halved, and blanched (boil 5 minutes, place beans in ice water for a couple of minutes, drain)
- 1 can quality French fried onions
- or gluten free French fried onions
Instructions
- Preheat the oven to 350 degrees F.
- Fry the bacon in a large skillet over medium-high heat until crispy. Add the onions and cook until soft and translucent, about 4-5 minutes. Add the mushrooms and garlic and cook for another 4-5 minutes until the mushrooms are soft. Transfer the mixture to a bowl.
- Melt the butter in the same skillet and whisk in the flour. Once combined, continue whisking for another 2 minutes until the mixture has slightly deepened in color. Add the half-and-half and chicken broth while constantly whisking to prevent lumps. Once slightly thickened, add the cheese and whisk until melted and combined.
- Next add the mushroom/bacon mixture along with the salt and pepper. Let the sauce simmer for a couple of minutes, then add the green beans. Stir to combine.
- Pour the bean mixture into a 9x13 casserole dish and sprinkle the French fried onions all over the top. Bake uncovered for 30 minutes until bubbling and the onions are golden and crispy. Let sit for 5 minutes before serving.
Notes
Nutrition
Originally published on The Daring Gourmet Dec 7, 2013
Texas Momma says
If I double the recipe, can I still use a 9×13 dish?
Kimberly @ The Daring Gourmet says
That’s probably pushing it, Texas Momma. It depends on how deep it is, you might be able to get away with it.
Anonymous says
I always do a double batch and use a 11 3/4 X 9 3/8 and 2 inch deep disposable pan and it always works out for me.
Catherine McCraw says
This is by far the best green bean casserole of all time!! I made it many times. Took a triple batch to work for a potluck lunch. Everyone raved about it and wanted the recipe. Making it this coming week for family Christmas dinner. My grandkids who don’t usually eat green beans gobble it up. My daughter-in-law who is a light eater and skinny goes back for seconds and sometimes thirds. Thanks for making this the best of ever!!
Kimberly @ The Daring Gourmet says
Thank you so much, Catherine, I’m happy it’s become a tradition in your family! :)
Lindeey says
My 9×13 dish broke :( can I use a large circular stoneware dish that is deep but not as wide.
Kimberly @ The Daring Gourmet says
Hi Lindeey, yes that will work, there just won’t be as much surface area for the French fried onions.
Christina says
Hi, I have questions. Is the butter salted or unsalted? And do you add oil to the pan when cooking the bacon?
Kimberly @ The Daring Gourmet says
Hi Christina, the butter is unsalted and no need to add oil when cooking the bacon, it will release a lot of fat on its own.
Colleen says
Hi, I just made this for Thanksgiving (tomorrow) and I will be baking it then putting it in a thermal casserole carrier to keep it warm while I take to the gathering. It might sit in the carrier, which keeps things really hot, for an hour. Do you think the french fried onions will get soggy? Thanks for the recipe, it’s fantastic!
Kimberly @ The Daring Gourmet says
Hi Colleen, they should still retain some crunchiness after an hour. Happy Thanksgiving!
Helene says
Can I use heavy cream instead of 1/2 and 1/2
Kimberly @ The Daring Gourmet says
Yes you can, Helene.
Ruth says
I am excited to try this recipe tomorrow. Only problem is that we have to drive about 45 minutes to
get to our family and I wanted to bring the dish already cooked. Will it be ok to just throw it in the oven to reheat a little when I get there?
Kimberly @ The Daring Gourmet says
Hi Ruth, that will be totally fine. Happy Thanksgiving!
Cathrine says
Can I use frozen green beans? Will they need cooked first if I do?
Kimberly @ The Daring Gourmet says
Hi Cathrine, yes you can use frozen and no need to cook them first, just let them thaw and drain.
vicki hand says
Can this recipe be doybled
Kimberly @ The Daring Gourmet says
Yes it can, Vicki!
Kenny says
Any suggestions for vegetarian? I could just omit bacon but looking for a good substitute in this dish. I’m making one with bacon and one without.
Kimberly @ The Daring Gourmet says
Hi Kenny, there are some vegetarian bacon alternatives. Morningstar is one example, they make vegetarian bacon strips.
KNgo says
When I need to make something vegetarian and need to sub for bacon, I dice up mushrooms and cook in butter until they are quite brown and crispy. Get most of the water out of them. It works rather well. Give it a try!
Victoria M says
I season my green beans in bacon and chicken broth and then strain and put into casserole. The seasoned green beans steps the recipe up the ladder. And you can serve the green beans by themselves.
Charlotte Doherty says
I’ve been making this for a couple of years and my step son says that it is the best dish on the table at Thanksgiving.
Kimberly @ The Daring Gourmet says
Thank you so much, Charlotte, what a fabulous compliment!
Nicole says
This recipe is SO GOOD! I convinced my family (who hates green bean casserole) to try it and they loved it! Definitely a recipe for the books!
Kimberly @ The Daring Gourmet says
What a victory, Nicole, that’s awesome! Thank you!
Lisa says
The title is accurate! If you don’t mind the little extra work to have the very best green bean casserole ever, then choose this recipe! I will never use any other after trying this one!
Kimberly @ The Daring Gourmet says
Thanks so much, Lisa! :)
Helen says
Very good recipe,I made it as a side dish next to short ribs, everyone loved, thanks for sharing your recipe
Kimberly @ The Daring Gourmet says
Wonderful, Helen, thank you!
Ana Zarco says
Thank you for this amazing recipe. I’ve been making this for the past 4yrs. Everyone loves it. This yr 2020. I got praised for how amazing good it is & how it’s been the best tasting one. My version I use, young gouda cheese, irish aged white cheddar, smoked bacon cheddar cheese. I use a sweet vidalia onion, leeks & white onion. I use vegetable organic broth. It’s out of this world. So flavorful.
Kimberly @ The Daring Gourmet says
Fantastic, Ana, thank you so much for the feedback!