Campbells Green Bean Casserole Recipe
Introduction
This classic Campbell’s Green Bean Casserole is a comforting and easy-to-make side dish perfect for any meal. Made with tender green beans, creamy mushroom soup, and topped with crispy fried onions, it’s a family favorite that comes together quickly.

Ingredients
- 1 can condensed Cream of Mushroom soup (10.5 ounces)
- 1/2 cup milk
- 1 teaspoon soy sauce
- 4 cups cut green beans (2 cans green beans, one 16-ounce package frozen green beans, or 1 1/2 pounds fresh green beans)
- 1 1/3 cups crispy French fried onions (divided)
- 1/4 teaspoon pepper, to taste
Instructions
- Step 1: Spray a 9×9 casserole dish with cooking spray.
- Step 2: If using fresh green beans, clean, cut, and blanch them in boiling water for 2 minutes. If using canned green beans, drain them well in a colander.
- Step 3: In a bowl, mix the cream of mushroom soup and milk until smooth with no lumps. Stir in the soy sauce.
- Step 4: Add the green beans and two-thirds of the crispy fried onions (about half of the total amount). Season with pepper to taste and mix everything well.
- Step 5: Spread the green bean mixture evenly in the prepared casserole dish.
- Step 6: For air fryer: Bake at 350°F for 10 minutes. Stir the casserole, sprinkle the remaining onions on top, and cook for 2 more minutes to brown them.
- Step 7: For oven: Bake at 350°F for 25 minutes. Stir, then sprinkle the remaining onions on top and bake for 5 more minutes until golden brown.
Tips & Variations
- Use fresh green beans when possible for a crisp texture; blanching helps preserve their bright color.
- Substitute the soy sauce with Worcestershire sauce for a different depth of flavor.
- Add a pinch of garlic powder or onion powder to the soup mixture for extra flavor.
- For a gluten-free version, use gluten-free fried onions or toast gluten-free breadcrumbs as a topping.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F until warmed through, adding extra fried onions on top if desired for crunch.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this casserole ahead of time?
Yes, you can prepare the casserole and refrigerate it before baking. When ready, bake as directed, adding extra time if baking from cold.
Can I use frozen green beans without thawing?
It’s best to thaw and drain frozen green beans before mixing to avoid excess water that can make the casserole soggy.
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Campbells Green Bean Casserole Recipe
- Total Time: 42 minutes (air fryer) or 45 minutes (oven)
- Yield: 6 servings 1x
Description
This classic Campbell’s Green Bean Casserole recipe combines tender green beans with a creamy mushroom sauce and crispy French fried onions for a deliciously comforting side dish. Perfect for holidays or any family meal, this casserole can be cooked in either an air fryer or oven to achieve golden, crispy topping and creamy interior.
Ingredients
Sauce and Base
- 1 can condensed Cream of Mushroom soup (10.5 ounces)
- 1/2 cup milk
- 1 teaspoon soy sauce
- 1/4 teaspoon pepper, to taste
Green Beans
- 4 cups cut green beans (2 cans green beans, or one 16 ounce package frozen green beans, or 1 1/2 pounds fresh green beans)
Topping
- 1 1/3 cup crispy French fried onions (divided)
Instructions
- Prepare the Casserole Dish: Spray a 9×9 inch casserole dish generously with cooking spray to prevent sticking and ease cleanup.
- Prepare the Green Beans: If using fresh green beans, wash, trim, and cut them, then blanch in boiling water for 2 minutes before draining. If using canned green beans, drain them thoroughly in a colander. Frozen green beans should be thawed and drained.
- Make the Sauce: In a medium bowl, combine the condensed cream of mushroom soup and milk, stirring until smooth and lump-free. Add the soy sauce and mix thoroughly.
- Mix Green Beans and Sauce: Stir the prepared green beans and two-thirds (about 2/3 cup) of the crispy French fried onions into the soup mixture. Season with pepper to taste and mix everything well to combine evenly.
- Assemble the Casserole: Pour and spread the green bean mixture evenly into the prepared casserole dish.
- Cook in Air Fryer: Place the casserole dish in the air fryer and bake at 350°F (175°C) for 10 minutes. Remove, stir the casserole gently, sprinkle the remaining 2/3 cup of French fried onions evenly over the top, and air fry for an additional 2 minutes until the onions turn golden and crispy.
- Cook in Oven: Alternatively, bake the casserole in a preheated oven at 350°F (175°C) for 25 minutes. Remove from oven, stir gently, sprinkle the remaining onions on top, and bake for another 5 minutes until the onions are golden brown and crispy.
Notes
- Blanching fresh green beans helps retain their color and texture in the casserole.
- You can substitute soy sauce with tamari for a gluten-free option.
- Use crispy French fried onions for the classic crunchy topping; avoid soggy or stale onions for best results.
- Cooking times may vary slightly depending on your air fryer or oven model.
- This casserole is best served hot and fresh but can be prepared ahead and reheated.
- Prep Time: 15 minutes
- Cook Time: 27 minutes (10 minutes air fryer + 2 minutes crisping) or 30 minutes (oven)
- Category: Side Dish
- Method: Air Frying
- Cuisine: American
Keywords: Green bean casserole, Campbell’s recipe, creamy mushroom, French fried onions, holiday side dish, air fryer casserole, classic green bean casserole

