Classic Green Bean Casserole (2024)

This Green Bean Casserole recipe is a classic holiday side dish that needs just a few minutes of prep and can be made with fresh, frozen, or canned green beans.

Tender green beans and crispy fried onions are tossed in a shortcut creamy mushroom sauce. Top this casserole with more crispy onions and bake until golden and bubbly.

This is the perfect side dish to serve along with your roast turkey for the perfect meal!

Classic Green Bean Casserole (1)

A Classic Holiday Casserole

I love green bean casserole, it reminds me of holidays from my childhood. This is a version of Campbell’s green bean casserole developed by Dorcas Reilley in the test kitchen (although I do love my from-scratch version too)!

  • This dish needs only 5 minutes of prep time making this the easiest side dish ever.
  • Can be made ahead of time, placed in a baking dish, and baked just before serving.
  • Top with crispy onions or even a Panko mixed with butter and a sprinkle of parmesan cheese.
  • It’s perfect as a Thanksgiving side dish, for Easter or Christmas dinner but it’s also great alongside Sunday supper too.
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Ingredients in Green Bean Casserole

Green Beans – For this recipe, you can use fresh, frozen, or canned.

Canned green beans are softer but are easy to use because they require no prep. Simply drain and enjoy.

Frozen green beans require no cutting and have a tender-crisp texture. You can skip cooking frozen green beans but I prefer the texture if they’ve been cooked in boiling water for about 5 minutes (and you’ll need a bit more salt).

Like frozen, fresh green beans have a tender-crisp texture and a fresher flavor. Simmer for 8 minutes.

Sauce – Using a can of condensed mushroom soup is what makes this recipe so easy (and is the base of the creamy mushroom sauce). Any “cream of” soup will work just fine in this recipe or you can use homemade condensed mushroom soup or chicken soup!

Crispy Fried Onions – Crispy Fried Onions (or french fried onions) are essential to this recipe (so much that it’s even sometimes called French’s Green Bean Casserole)!

If you’ve never had them, these onions are delish and great on all kinds of casseroles, burgers, and more! They’re added both in and on this casserole!

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  • I love to add cheddar cheese to this recipe (optional of course!), it melts into the sauce making it extra yummy.
  • Make your own homemade mushroom cream sauce instead of canned and/or swap out the onions for fried shallots.
  • Add minced cloves of garlic cooked in butter, some roasted garlic, or a dash of garlic powder.
  • Simmer the green beans in chicken broth. Reserve the drained chicken broth for making your stuffing!

How To Make Green Bean Casserole

There’s a reason this dish has been around for years, it’s simple. It’s delicious. Perfect in every way.

  1. Cook Beans: Simmer fresh or frozen green beans. (drain them if they’re canned)
  2. Mix Sauce: Combine mushroom soup, milk, soy sauce, and pepper (per recipe below).
  3. Toss Together: Add the sauce, green beans, some crispy onions, and cheese to a bowl.
  4. Top & Bake Top the green bean mixture with more crispy onions and bake until golden and bubbly!


Set It & Forget It

Green bean casserole can be prepared as above and cooked in a crock pot or slow cooker on low for about 2-3 hours. Once cooked through, turn the slow cooker to warm.

If your slow cooker is larger than 4qt, I would recommend doubling the recipe.

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How To Prep Ahead of Time

You can make green bean casserole ahead of time.

  1. Prepare as directed except keep the crispy onion topping in a separate container. I usually place them in a sealed sandwich bag right in the dish and sprinkle on top before baking.
  2. Refrigerate for up to 48 hours.
  3. Remove the dish from the refrigerator at least 30 minutes before baking. If it’s really chilled, you may need to add up to 10 minutes of extra cooking time.

Traveling to Dinner?

If you’re heading to someone else’s house for dinner, do everything except the last 10 minutes of baking and bring it along with you covered in tin foil!

Top with crispy onions and bake until hot and bubbly!

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How Long To Cook Green Bean Casserole?

Green bean casserole needs to cook for about 40 minutes at 350°F. If your green bean casserole has been in the fridge, you will likely need to add some extra time!

Can You Make Green Bean Casserole Ahead of Time?

Yes, it can be made up to 48 hours ahead of time. Add about 10 minutes to the baking time.

Can You Freeze Green Bean Casserole?

Yes, this casserole can be frozen. Prepare as directed and freeze before baking. Thaw in the fridge overnight and bake as directed adding 10 minutes to the baking time.

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5 from 1946 votes↑ Click stars to rate now!
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Classic Green Bean Casserole

Tender green beans, cheese, and crispy onions are tossed in a delicious creamy sauce and then baked with even more crispy onions until hot and bubbly!


Classic Green Bean Casserole (13)

Prep Time 10 minutes minutes

Cook Time 40 minutes minutes

Total Time 50 minutes minutes

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Servings 8 servings

Classic Green Bean Casserole (15)

Author Holly Nilsson


  • 4 cups frozen cut green bean defrosted (see notes for canned or fresh beans)
  • 10 ½ ounces cream of mushroom soup
  • ½ cup milk
  • 1 teaspoon soy sauce
  • ½ teaspoon black pepper
  • ¼ teaspoon seasoning salt or to taste
  • 1 ½ cups crispy fried onions divided


  • Preheat oven to 350°F.

  • If using fresh or frozen green beans, boil just until tender crisp. (see note)

  • Combine green beans with soup, milk, soy sauce, pepper, salt, 1 cup of crispy onions, and cheese (if using, see note) in a casserole dish.

  • Bake uncovered for 30-35 minutes or bubbly.

  • Remove from oven and stir. Top with remaining onions and return to oven for an additional 10 minutes or until golden.



Green Beans: Canned, fresh, or frozen beans work in this recipe. In place of frozen beans, you can use either of the following:

  • drain 2 (14 ½ ounces each) cans of green beans
  • 1 ½ pounds fresh green beans, trimmed and simmered for about 7-8 minutes

Optional Additions:

  • 1 ½ cups shredded cheddar cheese (favorite!)
  • fried mushrooms, onions, garlic, and/or shallots

Make Ahead: This casserole can be made up to 48 hours ahead of time. Remove the casserole from the fridge for at least 30 minutes before baking. You may need to add 10 minutes of extra cooking time.

5 from 1946 votes

Nutrition Information

Calories: 112 | Carbohydrates: 11g | Protein: 3g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 0.4g | Cholesterol: 3mg | Sodium: 475mg | Potassium: 190mg | Fiber: 2g | Sugar: 3g | Vitamin A: 409IU | Vitamin C: 7mg | Calcium: 41mg | Iron: 1mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Classic Green Bean Casserole (17) Course Casserole, Side Dish

Classic Green Bean Casserole (18) Cuisine American

© Content and photographs are copyright protected. Sharing of this recipe is both encouraged and appreciated. Copying and/or pasting full recipes to any social media is strictly prohibited. Please view my photo use policy here.

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Casseroles, Christmas, Easter, Side Dishes, Thanksgiving

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Concepts Related to the Green Bean Casserole Recipe

Green Bean Casserole Overview The Green Bean Casserole is a classic holiday side dish that is easy to prepare and can be made with fresh, frozen, or canned green beans. It features tender green beans and crispy fried onions tossed in a creamy mushroom sauce, topped with more crispy onions and baked until golden and bubbly. This dish is often associated with holiday meals, such as Thanksgiving, Christmas, and Easter.


  • Green Beans: The recipe allows for the use of fresh, frozen, or canned green beans, each with its own unique texture and flavor.
  • Creamy Mushroom Sauce: The base of the sauce is a can of condensed mushroom soup, which serves as the shortcut for creating the creamy mushroom sauce. It can be substituted with other "cream of" soups or homemade condensed mushroom soup.
  • Crispy Fried Onions: Essential to the recipe, crispy fried onions are added to the casserole and used as a topping. They are known for adding a delightful crunch and flavor to the dish.


  • Cheddar Cheese: Adding cheddar cheese to the recipe is optional, and it melts into the sauce, enhancing the flavor.
  • Homemade Mushroom Cream Sauce: Instead of using canned soup, a homemade mushroom cream sauce can be prepared, or fried shallots can be used as an alternative to the crispy onions.
  • Additional Flavorings: Options for enhancing the flavor include minced garlic cooked in butter, roasted garlic, or a dash of garlic powder. Simmering the green beans in chicken broth is another variation.

Preparation The preparation of the Green Bean Casserole involves cooking the green beans, mixing the sauce, combining the ingredients in a bowl, topping the mixture with crispy onions, and baking until golden and bubbly. It can also be prepared ahead of time and cooked in a crockpot or slow cooker.

Make-Ahead and Freezing The casserole can be made ahead of time, and the crispy onion topping can be kept separately. It can also be frozen before baking and then thawed in the fridge overnight. The baking time will need to be adjusted accordingly.

Cooking Time The typical cooking time for the Green Bean Casserole is about 40 minutes at 350°F, with adjustments needed if the dish has been refrigerated.

Additional Side Dishes The article also provides additional side dish recipes that complement a holiday meal, such as Sweet Potato Casserole, Easy Stuffing, Oven Roasted Carrots, Mashed Potatoes, Broccoli Rice Casserole, and Easy Corn Casserole.

Recipe The detailed recipe includes the ingredients, equipment, preparation steps, variations, make-ahead instructions, cooking time, and nutritional information for the Classic Green Bean Casserole.

In summary, the Green Bean Casserole is a versatile and beloved holiday side dish with various options for customization, make-ahead preparation, and complementary side dishes.

If you have any specific questions or need further details on any of the concepts related to the Green Bean Casserole, feel free to ask!

Classic Green Bean Casserole (2024)


How do you make green bean casserole not soggy? ›

If you are finding that your green bean casserole is soupy, be sure to drain the green beans really well after blanching so you aren't getting extra water in the casserole that way. Then make sure to thicken the sauce properly by letting the chicken broth and half-and-half simmer long enough to thicken.

Should green bean casserole be soupy before cooking? ›

Green bean casserole should have a nice thick sauce that coats the green beans—it should not resemble soup. One common cause of a watery casserole is not adding enough thickener, such as flour or cornstarch, to your sauce.

Are the ingredients for green bean casserole? ›

Mix cream of mushroom soup, milk and pepper in 1 1/2-quart baking dish. Stir in green beans and 2/3 cup Crispy Fried Onions. Make green bean casserole with canned, frozen (thawed) or fresh green beans.

Which is better in green bean casserole canned or frozen? ›

When I make green bean casserole, I skip canned beans all together. Frozen green beans are the best green beans to use for green bean casserole.

Why is my green bean casserole so soupy? ›

The Casserole Is Too Soupy

If you used frozen green beans, but didn't fully defrost and drain them prior to adding them to the casserole, that mistake will surely account for the excess water you're now experiencing.

Can you overcook green bean casserole? ›

Overcooking the beans won't just drain them of their appealing color, but it will also make them too soft and mushy, resulting in a less appetizing casserole.

How many cans of green beans equals 4 cups? ›

✿ 4 cups of green beans is about 1½ pounds fresh or 16 ounces frozen or 2 cans (15 ounces each) drained.

How to make green bean casserole thicker? ›

Add a thickener

While your green bean casserole is on the stove, incorporate a thickener into the vegetables, such as cornstarch or flour. According to The Kitchn, you can combine cornstarch and a small amount of water or broth in a cup and stir until the lumps are gone, and it becomes a thick yet drizzly consistency.

Why is green bean casserole so good? ›

Fans love the dish in part because of how simple it is to throw together. It calls for ingredients that could be found in a typical home kitchen pantry: canned or fresh green beans, mushroom soup, milk, soy sauce and black pepper.

Are canned or fresh green beans better for casserole? ›

Canned green beans have already been cooked to an inch of their life. Expecting them to not be mushy after you've cooked them into a casserole is a fantasy. Start with fresh green beans, cook them until they are just tender and turn them into a casserole. If green beans aren't in season, use frozen.

Do people still eat green bean casserole? ›

Green Bean Casseroles are served at 20 million Thanksgiving dinners every year.

Do most people like green bean casserole? ›

Instacart conducted a survey with The Harris Poll and found that a majority of Americans, 69%, secretly dislike some classic Thanksgiving food but eat it anyway because of tradition. The top offenders were: Canned cranberry sauce (29%) Green bean casserole (24%)

How many days is green bean casserole good for? ›

Green Bean Casserole Leftovers

Your creamy green bean casserole will last about four days in the fridge. The crunchy topping will get softer as time goes by; pop it into the oven to reheat to crisp it up a bit. While casseroles have a reputation for being freezer-friendly, green bean casseroles don't freeze so well.

How do you keep green beans crisp? ›

While the beans are cooking, fill a large bowl with cold water and ice. As soon as the beans are done cooking, transfer them immediately to the ice bath to stop the cooking process and preserve their bright green color. Leave the beans in the bowl of ice water for a few minutes before removing them with tongs.

Why are my home canned green beans mushy? ›

To keep home-canned green beans firm, it's important to follow proper canning procedures to ensure that they are processed at the correct temperature and for the correct amount of time. Overcooking or undercooking can cause the beans to become mushy or tough.

Why are my green beans mushy? ›

If you toss frozen green beans straight into a pan, all the ice around them will thaw and create a pool of water in the bottom of the pan, which then has to cook off before the green beans start to saute. This results in overcooked, soft, soggy, and rubbery green beans.

How do you keep green beans fresh and crisp? ›

How to Store Green Beans. Green beans should be stored unwashed in the crisper drawer of your fridge. If they came in a bag, keep them in the bag when storing. If they came in a small berry box from the market, transfer them to a reusable storage or plastic bag before storing them in the fridge.

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