As I opened my grandmother's weathered recipe book, the comforting scent of holiday gatherings washed over me like a warm embrace. The Classic Campbell’s Green Bean Casserole instantly caught my eye, transporting me back to laughter-laden dinner tables. This easy-to-make dish has been a beloved side at countless celebrations, showcasing tender green beans bathed in a creamy mushroom sauce, all crowned with crispy fried onions. Not only is it a true crowd-pleaser—perfect for Thanksgiving or cozy family dinners—but its simplicity makes it a go-to recipe for any busy weeknight. Ready to level up your comforting side dish game? Join me in experiencing the nostalgia and deliciousness of this timeless casserole!

Why is Green Bean Casserole a Must-Try?
Comforting and Nostalgic: This classic dish brings back heartfelt memories of family gatherings, reminding us of the warmth of home-cooked meals.
Simplicity at Its Finest: With minimal prep time, this recipe is perfect for busy cooks who crave homemade flavors without the fuss.
Versatile Ingredients: Easily customize with veggies or proteins for a unique twist, ensuring satisfaction for everyone at the table.
Crowd-Pleasing Delight: Its creamy texture combined with the crunch of fried onions makes it an instant favorite, whether at Thanksgiving or a casual dinner.
Perfect Storage Option: Make ahead and store easily for stress-free entertaining; just bake and serve! This Green Bean Casserole is not just a side dish; it's a heartfelt experience.
Green Bean Casserole Ingredients
For the Casserole
- Campbell’s Cream of Mushroom Soup – This is the creamy base of the dish; feel free to substitute with homemade soup for a fresher taste.
- Milk – Adds richness; using full-fat milk will yield the creamiest results that perfectly complement the green beans.
- Soy Sauce – A splash enhances the umami flavor, but you can skip it if you're watching salt intake.
- Black Pepper – A sprinkle adds a mild heat; adjust to suit everyone's taste preferences.
- Cut Green Beans – The star of the dish; choose canned, frozen (thawed), or blanched fresh beans for a delightful bite.
- French Fried Onions – Essential for that crunch; mix some in the casserole and sprinkle the rest on top for added texture.
- Sautéed Mushrooms (Optional) – Elevate the dish with extra mushroom flavor; add if you're a fan of mushrooms!
- Shredded Cheddar Cheese (Optional) – Introduce a cheesy twist by folding in some cheese for a richer flavor profile.
- Garlic Powder (Optional) – Adds depth and aroma; adjust according to your preference. This Green Bean Casserole is versatile enough for everyone’s taste!
For the Topping
- More French Fried Onions – Reserve for the last baking stage; they will crisp up beautifully on top for that irresistible crunch!
Step‑by‑Step Instructions for Green Bean Casserole
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). This is crucial for ensuring your Green Bean Casserole bakes evenly. While the oven warms up, gather your ingredients and prepare your baking dish by lightly greasing it, so the casserole doesn’t stick as it bakes.
Step 2: Prepare the Mixture
In a large mixing bowl, whisk together the Campbell’s Cream of Mushroom Soup, milk, soy sauce, and black pepper until the mixture is smooth and creamy. Look for a homogenous blend with no lumps. This creamy concoction forms the delicious base of your casserole.
Step 3: Fold in the Green Beans
Gently fold in the cut green beans and ⅔ cup of the French fried onions, ensuring they are evenly coated in the creamy mixture. Be careful not to mash the green beans while mixing—aim for a delightful combination that maintains the beans' integrity for that perfect texture in your Green Bean Casserole.
Step 4: Transfer to Baking Dish
Pour the green bean mixture into your greased baking dish, smoothing the top with a spatula for even baking. This step is essential for creating a lovely, uniform casserole. Make sure to spread it out well so that it can bake evenly and the sauce bubbles beautifully.
Step 5: First Bake
Place the dish in the preheated oven and bake uncovered for about 25 minutes. You'll know it’s ready when the soup bubbles around the edges and the mixture appears firmer. This first baking phase helps bring all the flavors together while lightly cooking the beans.
Step 6: Add Topping
Carefully remove the casserole from the oven and sprinkle the remaining French fried onions evenly on top. These will create that irresistible crunchy layer that complements the creamy filling. The visual contrast between the crispy onions and the smooth casserole is simply delightful!
Step 7: Final Bake
Return the dish to the oven and bake for an additional 5 minutes, until the onions are golden brown and crispy. Keep a close eye on it during this time, as the onions can quickly move from golden to burnt. This step enhances the flavor profile of your Green Bean Casserole with an added crunch.
Step 8: Rest Before Serving
Once done, remove the casserole from the oven and allow it to rest for about 5 minutes. This brief resting period allows the flavors to settle and makes serving easier. Your Classic Green Bean Casserole is now ready to be enjoyed as a comforting side dish!

Green Bean Casserole Variations
Explore delightful twists to make this classic dish truly your own!
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Vegetable Swap: Exchange green beans for asparagus or broccoli for a fresh upgrade. Each veggie offers a unique taste and texture.
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Meaty Addition: Add crispy bacon or diced ham for a smoky flavor boost that will leave everyone asking for seconds. It’s a delightful surprise that complements the creaminess.
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Cheesy Delight: Incorporate shredded cheddar or mozzarella cheese right into the mix for a gooey, cheesy twist that will satisfy all cheese lovers. It adds a rich depth to each bite!
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Mushroom Medley: Amp up the mushroom flavor by adding sautéed cremini or shiitake mushrooms. It brings an earthy richness that pairs beautifully with green beans.
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Gluten-Free Alternative: Use gluten-free French fried onions or make a crispy topping from crushed gluten-free crackers to accommodate dietary needs.
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Spicy Kick: Toss in some red pepper flakes or cayenne for those who enjoy a little heat. It enhances the flavor profile and adds an exciting twist.
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Herbal Infusion: Sprinkle fresh herbs like thyme or rosemary for an aromatic touch. The freshness elevates the dish in surprising ways.
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Cream Substitution: Swap out the milk for coconut milk for a dairy-free version. This adds a subtle sweetness and makes it vegan-friendly!
Feel free to mix and match these ideas to fit your taste and dietary preferences. Not only does it make for a unique experience, but it also keeps the dinner table buzzing with excitement! If you love customizing dishes, check out our Cream of Mushroom Soup for a flavorful base or explore other comforting casseroles to suit your family’s palate.
Make Ahead Options
Preparing your Classic Campbell’s Green Bean Casserole in advance is a game-changer for busy weeknights or holiday gatherings! You can assemble the casserole up to 24 hours ahead of time, layering the creamy mixture with green beans and fried onions, but hold off on adding the topping until just before baking (to keep them crispy). Simply cover it tightly with plastic wrap and refrigerate. When you're ready to serve, preheat your oven and bake the casserole as directed, adding the fried onions for the final 5 minutes to achieve that desired golden crunch. This way, you’ll enjoy all the rich flavors without the hassle on the day of your gathering!
What to Serve with Classic Campbell’s Green Bean Casserole
As you indulge in the rich flavors of this comforting casserole, consider the perfect side companions to create a delightful feast.
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Creamy Mashed Potatoes: Their velvety texture and buttery flavor pair beautifully with the green bean casserole, making it a classic comfort food duo.
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Roasted Chicken: Juicy, herb-seasoned chicken complements the creamy casserole and adds heartiness to your meal.
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Maple Glazed Carrots: The sweetness of tender, caramelized carrots balances the savory notes of the casserole, creating a harmonious dish.
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Herbed Dinner Rolls: Soft, warm rolls are perfect for scooping up the creamy casserole and add a delightful texture contrast.
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Cranberry Sauce: A tangy counterpoint to the earthiness of the casserole, this fruity accompaniment brightens the entire plate.
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Simple Green Salad: Crisp greens with a light vinaigrette bring freshness and a welcome crunch to your holiday spread.
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Sparkling Cider: This bubbly drink enhances the celebratory feel of your meal, complementing its festive flavors with its light sweetness.
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Pumpkin Pie: Finish your meal with a slice of this classic dessert, evoking those charming holiday memories and flavors.
Storage Tips for Green Bean Casserole
Fridge: Store leftovers in an airtight container in the refrigerator for up to 3-4 days to maintain freshness and flavor.
Freezer: You can freeze the uncooked casserole for up to 2 months. Just be sure to cover it tightly with plastic wrap and foil to prevent freezer burn.
Reheating: Reheat individual portions in the microwave for 2-3 minutes or bake the entire casserole at 350°F (175°C) for 10-15 minutes until heated through and the crispy topping is re-crisped.
Make-Ahead Option: For ease, prepare the Green Bean Casserole in advance and store it uncooked; lace the fried onions on top just before baking.
Expert Tips for Green Bean Casserole
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Blanch Fresh Beans: If you're using fresh or frozen green beans, blanch them briefly before mixing. This ensures they cook evenly and aren’t too crunchy after baking.
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Reserve Onions: Always set aside some French fried onions to sprinkle on top during the last bake. This keeps them crispy and adds a delightful crunch to your Green Bean Casserole.
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Creaminess Control: Adjust the amount of milk in the mixture based on your preference for creaminess. More milk equals a richer sauce, but aim for balance to maintain flavor.
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Prep Ahead: You can assemble your Green Bean Casserole a day in advance. Just remember to top with fried onions right before baking to keep their texture intact.
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Experiment with Flavor: Feel free to add ingredients like sautéed mushrooms or different cheese varieties for a personalized twist. Just ensure they complement the main flavors of the casserole!

Green Bean Casserole Recipe FAQs
What kind of green beans should I use?
You can use canned, frozen (thawed), or fresh green beans for this recipe. If using fresh, make sure to blanch them briefly before mixing to ensure they cook evenly in the casserole. I often recommend using frozen green beans as they're just as tasty and save time on prep!
How should I store leftovers of the green bean casserole?
Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Make sure to let it cool to room temperature before sealing it to retain its texture and flavor.
Can I freeze green bean casserole?
Absolutely! You can freeze the uncooked casserole for up to 2 months. Just cover it tightly with plastic wrap and foil to prevent freezer burn. To bake, simply thaw it in the refrigerator overnight and then bake as directed, adding the French fried onions just before it goes in the oven for that ideal crunch.
What should I do if the casserole isn't bubbling after the first bake?
If your casserole isn't bubbling after the initial 25 minutes, it may just need a bit more time. Oven temperatures can vary, so I suggest checking it in 5-minute increments. If the mixture is too thick, adding a tablespoon of milk can help loosen it up.
Is this green bean casserole suitable for vegetarians?
Yes! This recipe is vegetarian-friendly, making it a great option for your meat-free guests. Just be sure that any added ingredients, like broth if you choose to make a homemade mushroom soup, are also vegetarian.
Can I customize this green bean casserole recipe?
Very! The recipe is incredibly flexible. You can add sautéed mushrooms for extra depth of flavor, or swap green beans for other veggies like asparagus or broccoli. Feel free to experiment with cheese types or even add crispy bacon for a non-vegetarian twist!

Easy Green Bean Casserole: A Comforting Holiday Classic
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease your baking dish.
- In a mixing bowl, whisk together the soup, milk, soy sauce, and black pepper until smooth.
- Fold in the green beans and ⅔ cup of the French fried onions gently.
- Transfer the mixture to a greased baking dish and smooth the top.
- Bake uncovered for about 25 minutes, until the soup bubbles.
- Sprinkle the remaining French fried onions evenly on top.
- Return to the oven and bake for an additional 5 minutes until golden brown.
- Let the casserole rest for 5 minutes before serving.





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