Bacon and Gruyère Green Bean Casserole

Updated Nov. 1, 2023

Bacon and Gruyère Green Bean Casserole
Andrew Scrivani for The New York Times
Total Time
1¼ hours
Rating
4(1,880)
Notes
Read community notes

This version pays tribute to the classic green bean casserole but upgrades its components. The cream of mushroom soup is replaced with crème fraîche and sautéed mushrooms; bacon and Gruyère are added to the mix; fresh green beans stand in for frozen (though you could use frozen in a pinch); and bread crumbs swap in for the Ritz crackers. —Martha Rose Shulman

Featured in: The United States of Thanksgiving

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Ingredients

Yield:6 to 8 servings
  • 2tablespoons unsalted butter
  • 2pounds green beans, trimmed and broken in half
  • Salt, to taste
  • 6slices bacon
  • 2shallots, finely chopped (about ½ cup)
  • ½pound mushrooms, sliced
  • 1cup crème fraîche
  • cup heavy cream
  • 6ounces Gruyère, shredded (1½ cups)
  • 2teaspoons chopped fresh marjoram or 1 teaspoon fresh thyme leaves (optional)
  • ½cup bread crumbs (or crumbled Ritz crackers)
Ingredient Substitution Guide
Nutritional analysis per serving (8 servings)

358 calories; 27 grams fat; 14 grams saturated fat; 0 grams trans fat; 9 grams monounsaturated fat; 2 grams polyunsaturated fat; 17 grams carbohydrates; 4 grams dietary fiber; 7 grams sugars; 14 grams protein; 563 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Heat oven to 375 degrees. Use 1 tablespoon butter to grease a 2- to 2½-quart baking dish or gratin.

  2. Step 2

    Bring a large pot of water to a boil, salt generously and add green beans. Boil for 5 minutes and transfer to a bowl of cold water. Drain on a kitchen towel.

  3. Step 3

    Heat a large, heavy skillet over medium heat and add bacon. Cook until crispy, about 10 to 12 minutes. Remove to paper towels and let cool.

  4. Step 4

    Discard all but 2 tablespoons of bacon grease in pan and return to heat. Add shallots and cook, stirring, until they begin to soften, 2 to 3 minutes. Add mushrooms and turn heat up slightly. Cook, stirring and scraping the bottom of pan, until mushrooms begin to sweat. Add salt to taste and cook until tender, about 5 minutes. Remove from heat.

  5. Step 5

    In a large bowl whisk together crème fraîche and cream. Stir in Gruyère. Add green beans, mushrooms and shallots, and marjoram or thyme. Crumble in bacon. Add salt and pepper to taste and stir everything together until beans are well coated. Transfer to baking dish.

  6. Step 6

    Melt remaining butter and toss with bread crumbs. Sprinkle evenly over top of casserole. Bake 30 minutes, until bread crumbs are golden brown and casserole is bubbling. Remove from heat, let sit until bubbles subside, and serve.

Ratings

4 out of 5
1,880 user ratings
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Cooking Notes

Here in the Midwest, this recipe has one serious mistake. (Insert smiley face icon here!) This is the one time of the year many of us ever eat/have in our kitchen those very processed things called "French Fried Onions." Ritz crackers? Bread crumbs? Why even bother to make this!?!

A few notes:

6 oz grated Gruyère made 2 cups for me, not 1.5 cups.

Creme fraîche at my supermarket comes in 7 oz containers, so I add 1 oz (2 Tbsp) sour cream to make up the difference.

Next time I'm going to use a salad spinner to dry the cooked beans before using a towel for the last bit.

I suggest cutting the beans to 1"-2" lengths instead of just in half: easier to eat.

The recipe filled a 3-qt pot and would not have fit a 2.5-qt pot (and certainly not a 2-qt pot).

My mother's recipe, in Ohio 50 years ago, did not contain canned soup or canned mushrooms or ritz crackers. It was made from scratch with fresh mushrooms, fresh frenched string beans, a cream sauce made with cheddar cheese, no bacon, and crunchy water chestnuts. A delicious recipe, that the food companies ruined so no one even remembers what the original was! Ms. Shulman has gotten us most of the way back to the original. Thank you, but I'll still make my mother's version.

I'd cook the component parts the day before, but assemble it just before cooking on the day. If you assemble it a day before, there's a likelihood that the acid in the sauce will adversely change the texture and color of the beans.

I've done it both ways - assembled the day before and assembled the day of. When I did it the day before, so much liquid had seeped into the bottom of the dish. It was a watery mess. What I find works best is to cook all the ingredients individually the day before and then assemble the morning of.

FOR SEVERAL SIMPLE RECIPES FOR CREME FRAICHE, check out http://www.allaboutfasting.com/creme-fraiche-recipe.html

Creme Fraiche Recipe I is the most prevalent recipe for homemade creme fraiche:

1 cup heavy cream, not ultra-pasteurized
1 tablespoon buttermilk, sour cream, store-bought creme fraiche, or creme fraiche from a previous batch

Mix both ingredients in a clean, lidded container. Let sit at room temperature for 12-24 hours, then refrigerate.

And it's simply wonderful. I tested this for thanksgiving day and it's going on the menu right next to the bacon and Brussels sprouts!

I admit to a major substitution: nobody in my family really likes green beans, but most of us like broccoli, so I use broccoli instead of green beans. The casserole is still a delicious side dish. No bacon -- we have vegetarians -- and I do use french fried onions, however the creamy, cheesy sauce rather than gelid gray canned soup makes this one of the most popular side dishes on the table.

This dish was the hit of our holiday dinner. I think it tasted even better the next day. The next time I make this, I plan to prepare it the day before, let it sit in the fridge overnight, and then bake it off the day of, which will give the flavors even more time to meld.

Any thoughts on making this ahead the night before?

Great recipe! I made with following variations: deglaze shallots and mushrooms with healthy splash of vermouth to capture caramelized bacon; admixture of parmesan with gruyere cheeses; panko for bread crumbs - sprinkled on dry and topped with melted butter. Wonderful!!

This was a great dish for those of us who did not grow up on green bean casserole and for those that did.

I've tried many, many different versions of this casserole made from scratch with higher end ingredients. None of them are nearly as tasty as the original made with Campbell's mushroom soup (no other brand), frozen french cut string beans, and canned fried onions (what bread crumbs?)

I made this for Thanksgiving and couldn't wait to make it again for Christmas. It's way, way better and more refined than the canned soup recipe, but somehow still satisfies my craving for it. I melted the butter for the breadcrumbs with a smashed garlic clove, but otherwise stuck to the recipe. Like others noted, I can only get crème fraîche in a 7 oz container, but that amount was sufficient.

It wouldn't be the same. A better substitution for creme fraîche is sour cream.

This was delicious -- I "veganized" it. No bacon. Used all non dairy products --Earth balance non-soy "butter", Califa non-dairy Heavy cream and Coconut plain unsweetened yogurt. And non-dairy snoked gouda for the gruyere. Also used about a pound of baby bellas. I topped it with seasoned panko and nutritional yeast. It was even better the second day!

I’ve made this several Times successfully and this last year it split! Any ideas what happened?

Delicious but realized later that the what it was missing was Worcestershire.

Love this recipe. Make sure to throughly dry green beans. Add 2 more slices of bacon. Ritz crackers on top are the win.

Minor adjustments for GF and vegetarian folks like me - veggie bacon (yes, it’s a thing) and GF breadcrumbs. Awesome dish!

Reduce the salt

The sauce broke while baking. Any suggestions on how to prevent this from happening would be helpful.

Swap crème fresh with Greek yogurt Layer green beans, mushrooms and shallots, and cheese mixture. Top with Panko.

My children are gluten-free and this works well as a Thanksgiving side dish for us. I sub crushed lay's potato chips for the bread crumbs and it's delicious!

Can I make this ahead of time and freeze?

Low fat sour cream for crème fraiche

I have that blanching the green beans in boiling water for no more than 2-3 minutes rather than 5 minutes leaves the beans with not so much of a mushy consistency after cooking.

Not sure why, but this turned out to be watery and tasteless. I refrigerated the dish for two hours before adding the crumbs and cooking. Because the casserole was cold, I cooked it a little longer. After reading the rave reviews, the result was a surprise.

Add more panko, Broil at the end More bacon

This, but with Samin Nosrat’s herby fried shallots and bread crumbs. Insanely good.

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Credits

Adapted from “Bake Until Bubbly” by Clifford Wright

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