“Is that the sound of crispy fried onions calling?” I thought as I stepped into the kitchen, the air filled with the warm, comforting aroma of my favorite holiday classic. This Classic Campbell’s Green Bean Casserole is a must-have at any festive gathering, packed with creamy bliss and topped with that satisfying crunch. Whether you whip it up in the oven or take the air fryer route, this beloved side dish comes together in just 20 minutes, perfect for those hectic holiday prep days. Not only does it evoke cherished memories of family feasts, but it’s also an effortless crowd-pleaser that even the most culinary-challenged can master. You’ll love how easy it is to bring a taste of nostalgia to your table without the fuss. Ready to discover the secret to holiday happiness? Let’s dive into this cozy recipe together!

Why is this casserole a must-have?
Comforting Tradition: This Classic Campbell’s Green Bean Casserole channels the nostalgia of family gatherings, making it impossible to resist. Quick Preparation: In just 20 minutes, you can have this creamy delight ready to impress your guests, whether using the air fryer or oven. Versatile Ingredients: Feel free to mix things up by substituting green beans with Brussels sprouts or adding smoked bacon for a twist! Healthy Options: Opt for low-sodium soup and alternative milks to cater to various dietary needs. This dish is not just a side; it’s a celebration of holiday spirit that pairs beautifully with any main course, just like our Cordon Bleu Casserole or other festive favorites such as Doritos Casserole Savory.
Campbells Green Bean Casserole Ingredients
For the Casserole
- Cream of Mushroom Soup – Provides a creamy base; you can substitute with any other condensed soup if desired.
- Milk – Thins out the soup for a smoother consistency; unsweetened plant-based milk works great too.
- Soy Sauce – Adds umami flavor; swap it with Worcestershire sauce for a delightful twist.
- Green Beans – The backbone of the dish; use canned (drained), fresh (washed and blanched), or frozen (without thawing).
- Crispy French Fried Onions – Adds texture and crunch on top; consider homemade fried onions as an alternative.
- Black Pepper – Enhances flavor; adjust to taste as the soup and soy sauce already contain salt.
Step‑by‑Step Instructions for Campbells Green Bean Casserole
Step 1: Prepare the Green Beans
If you’re using fresh green beans for your Campbells Green Bean Casserole, start by washing them thoroughly and cutting off the stems. Blanch the beans in a pot of boiling water for 2 minutes to brighten their color and soften slightly. Once blanched, drain the beans and set them aside. If using canned or frozen beans, simply drain the canned beans or leave the frozen ones as they are.
Step 2: Mix the Casserole Base
In a large mixing bowl, combine the cream of mushroom soup and milk, stirring until the mixture is smooth and well-blended. Next, add in the soy sauce to provide that delicious umami flavor. This creamy soup base is the heart of your Campbells Green Bean Casserole, so make sure it’s mixed thoroughly to ensure even flavor throughout.
Step 3: Combine Ingredients
Fold the prepared green beans into the creamy soup mixture. Gently stir in about 2/3 cup of crispy French fried onions for added flavor and texture. Then, season generously with black pepper, mixing until all ingredients are well coated. This combination creates a flavorful, comforting blend that embodies the essence of traditional comfort food.
Step 4: Air Fryer Method
For the air fryer method, first, spray a 1.5-quart baking dish with non-stick spray. Pour in the green bean mixture and spread it evenly. Preheat your air fryer to 350°F, then place the baking dish inside and air fry for 10 minutes. After this initial cooking time, stir the casserole, add the remaining crispy fried onions on top, and air fry for an additional 2-3 minutes until the onions are golden brown and crispy.
Step 5: Oven Method
To use the oven instead, transfer the green bean mixture to a preheated 9×9 casserole dish. Bake in a preheated oven at 350°F for 25 minutes. After 25 minutes, stir the casserole and top it with the remaining crispy fried onions. Return it to the oven for an additional 5 minutes until the onions are beautifully crispy and the casserole is bubbling.
Step 6: Serve and Enjoy
Once your Campbells Green Bean Casserole is cooked to perfection, remove it from the air fryer or oven. Let it sit for a few minutes, allowing the flavors to meld together. Dish out generous portions to serve alongside your favorite holiday mains or enjoy it as a comforting side any day of the week.

Make Ahead Options
These Classic Campbell’s Green Bean Casserole make-ahead tips are perfect for busy cooks looking to save time on hectic holiday preparation! You can assemble the casserole mixture (excluding the crispy fried onions) and refrigerate it up to 24 hours in advance, which allows the flavors to meld beautifully. When you’re ready to serve, simply pop it in the oven or air fryer. If refrigerated, extend the cooking time by 10 minutes in the oven or 5 minutes in the air fryer. To maintain quality, cover the dish with foil during the baking process to prevent it from drying out. You’ll have a delightful, comforting side dish that’s just as delicious as if made fresh!
Storage Tips for Campbells Green Bean Casserole
Fridge: Keep the casserole covered in an airtight container for up to 3 days after cooking. It will retain its flavor and creamy texture.
Freezer: For longer storage, freeze the assembled casserole without the crispy onions for up to 3 months. Be sure to wrap it tightly to prevent freezer burn.
Reheating: Thaw the frozen casserole in the fridge overnight before reheating. Warm it in the oven at 350°F for about 25–30 minutes or until heated through. Add the crispy onions during the last 5 minutes for that delightful crunch.
Make-Ahead: Prepare the casserole in advance and refrigerate it before baking. Just remember to increase the cooking time by about 10 minutes if starting from cold!
Expert Tips for Campbell’s Green Bean Casserole
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Ingredient Substitutions: Feel free to swap ingredients; use cream of chicken soup or cheddar cheese for fun variations in your Campbell’s Green Bean Casserole.
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Avoid Overcooking: Keep an eye on the cooking time, especially if you’re working with both the air fryer and oven at the same time; check for doneness!
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Fresh vs. Canned: If using fresh green beans, ensure they’re blanched properly for the right texture. Canned beans save time but require draining well.
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Crispy Onions Tip: For extra crunch, try adding homemade fried onions. Just sprinkle them on right before serving for a fresh texture twist.
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Make Ahead: You can prepare the casserole earlier in the day. Simply refrigerate the mixture and cook it straight from the fridge, adding a little extra time to the cooking process.
Campbells Green Bean Casserole Variations
Feel free to let your creativity soar as you explore these fun and delicious twists on this classic dish!
- Dairy-Free: Substitute regular milk with unsweetened almond or oat milk for a creamy, plant-based alternative.
- Bacon Boost: Stir in cooked, crumbled bacon for a savory crunch that takes your casserole up a notch! The smoky flavor pairs beautifully with the creamy sauce.
- Vegan Option: Replace the cream of mushroom soup with a homemade cashew cream and omit the fried onions or use a vegan alternative for a guilt-free indulgence.
- Spicy Kick: Add a pinch of red pepper flakes or a dash of hot sauce to the mixture for an unexpected heat that will awaken your taste buds.
- Cheesy Twist: Mix in shredded cheddar or mozzarella before baking for a gooey, cheesy layer that complements the creamy filling perfectly.
- Herb Infusion: Sprinkle in some fresh thyme or rosemary for an aromatic flavor boost and additional depth to your casserole.
- Texture Variation: Use a mix of fresh, crisp Brussels sprouts instead of green beans for a delightful new texture and flavor profile that still feels festive.
By checking out variations like these, you can make your Classic Campbell’s Green Bean Casserole truly your own. Whether you’re looking to impress holiday guests or simply enjoy a comforting meal at home, these ideas will ensure you have a recipe that’s as flexible as it is beloved. And if you’re exploring more comforting favorites, don’t forget to check out our delicious Cordon Bleu Casserole and Doritos Casserole Savory recipes!
What to Serve with Classic Campbell’s Green Bean Casserole
The flavors and textures of this beloved dish invite a delightful array of side companions to complete your festive feast.
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Creamy Mashed Potatoes: Their velvety texture balances the crispy topping of the casserole perfectly, creating a comforting plate full of flavor.
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Roasted Turkey: A Thanksgiving staple, the savory notes of roasted turkey harmonize beautifully with the creamy, green bean delight enhancing that holiday spirit.
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Cranberry Sauce: The tartness of homemade cranberry sauce adds a refreshing contrast to the creamy casserole, brightening every bite.
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Garlic Breadsticks: These warm, buttery delights offer a delightful crunch that complements the casserole’s smoothness, making each mouthful a treat.
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Garden Salad: A fresh salad with crisp greens, crunchy cucumbers, and a tangy vinaigrette brings a refreshing bite to round out your meal beautifully.
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Sweet Potatoes: Their natural sweetness pairs wonderfully with the savory green beans, creating a dynamic contrast that’s both delicious and visually appealing.
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White Wine: A chilled glass of crisp white wine enhances the dish’s creaminess while adding a touch of elegance to your gathering.
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Apple Pie: Finish off your meal with this classic dessert, its sweet and spiced flavors echoing the warmth and comfort of the casserole. Each slice provides a satisfying end to the evening!

Campbells Green Bean Casserole Recipe FAQs
What type of green beans should I use for the casserole?
You have a few fantastic options for your Campbells Green Bean Casserole. You can use canned green beans, which are very convenient—just remember to drain them. Fresh green beans give a nice crispness and vibrant color; if you go this route, wash and blanch them for about 2 minutes. Frozen green beans can also work well without thawing, making them a no-fuss choice!
How do I store leftover casserole?
Absolutely! To store your leftover Campbells Green Bean Casserole, simply place it in an airtight container and keep it in the refrigerator for up to 3 days. When you’re ready to enjoy it again, just reheat in the oven or microwave until warmed through. Preserving that creamy goodness is the key to savoring every last bite!
Can I freeze the casserole?
Yes, freezing is a great option! For effective freezing, assemble the casserole without the crispy onions. Cover it tightly with plastic wrap and then aluminum foil to prevent freezer burn. It can be stored for up to 3 months. When you’re ready to cook it, thaw it in the refrigerator overnight, and then bake as directed, adding the crispy onions during the last few minutes for that perfect crunch.
What should I do if my casserole is too watery?
If you find your Campbells Green Bean Casserole is too watery, there are a couple of solutions! First, ensure that you are draining your canned green beans thoroughly before adding them to the mix. If the dish is still runny after baking, you can place it back in the oven uncovered for an additional 5-10 minutes. This allows excess moisture to evaporate, creating that wonderfully creamy texture you desire.
Is this casserole suitable for those with dietary restrictions?
Great question! If you’re catering to guests with dietary restrictions, there are several alternatives you can consider. Use low-sodium versions of the cream of mushroom soup and soy sauce for those watching their sodium intake. For a dairy-free version, substitute regular milk with unsweetened plant-based milk. Always check for allergies with ingredients like soy sauce, and feel free to get creative with alternative condiments, such as tamari for a gluten-free option. Enjoying this comforting casserole together is what matters most!

Cozy Up with Classic Campbells Green Bean Casserole
Ingredients
Equipment
Method
- Wash and cut off the stems of fresh green beans. Blanch in boiling water for 2 minutes, then drain.
- Combine cream of mushroom soup and milk in a large mixing bowl. Stir until smooth.
- Fold in prepared green beans and stir in 2/3 cup of crispy fried onions. Season with black pepper.
- For air fryer, spray a baking dish, add green bean mixture, air fry at 350°F for 10 minutes, stir, add remaining onions, air fry for another 2-3 minutes.
- For oven, transfer to casserole dish, bake at 350°F for 25 minutes, stir, top with onions, bake for additional 5 minutes.
- Let sit for a few minutes before serving.

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