Classic Campbell Soup Green Bean Casserole Recipe

The classic Campbell's Green Bean Casserole recipe combines 1 can (10.5 oz) of Campbell's Cream of Mushroom soup, 1/2 cup milk, 1 teaspoon soy sauce, 1/4 teaspoon black pepper, 2 cups of cooked cut green beans, and 1.5 cups of crispy fried onions. Mix soup, milk, soy sauce and pepper in a baking dish, stir in green beans, top with 1 cup of onions, bake at 350°F for 25 minutes, then add remaining onions and bake 5 more minutes.

For over 60 years, Campbell's Green Bean Casserole has been a staple at American holiday tables and weeknight dinners. Created by the Campbell Soup Company in 1955, this simple yet satisfying dish combines pantry staples with fresh vegetables for a side that consistently wins over crowds. The magic lies in its perfect balance of creamy mushroom sauce and crunchy fried onions that create contrasting textures in every bite.

The Authentic Campbell Soup Green Bean Casserole Recipe

This traditional recipe requires minimal ingredients yet delivers maximum flavor. Unlike complicated variations, the original version maintains its popularity because of its straightforward preparation and familiar taste that evokes comfort and nostalgia.

Ingredient	Amount	Preparation Notes
Campbell's Cream of Mushroom soup	1 can (10.5 oz)	Original recipe calls for condensed version
Milk	1/2 cup	Whole milk recommended for creamiest texture
Soy sauce	1 teaspoon	Adds umami depth without making dish salty
Black pepper	1/4 teaspoon	Freshly ground preferred
Cut green beans	2 cups	Cooked fresh or frozen (thawed and drained)
Crispy fried onions	1.5 cups	Use French's brand for authentic flavor

Step-by-Step Preparation Guide

Follow these precise instructions for the perfect traditional green bean casserole that honors the original Campbell's recipe while ensuring optimal texture and flavor:

1. Preheat your oven to 350°F (175°C) - this temperature ensures even cooking without drying out the casserole
2. In a 1.5-quart casserole dish, combine the condensed mushroom soup, milk, soy sauce, and black pepper, stirring until smooth
3. Gently fold in the cooked green beans until evenly coated with the sauce mixture
4. Sprinkle 1 cup of the crispy fried onions evenly over the top of the casserole
5. Bake uncovered for 25 minutes, or until the sauce is bubbling around the edges
6. Remove from oven and sprinkle the remaining 1/2 cup of onions over the top
7. Return to oven and bake for an additional 5 minutes to achieve maximum crispness on the topping
8. Let stand for 5 minutes before serving to allow the sauce to set slightly

Pro Tips for Perfect Results Every Time

While the Campbell soup green bean casserole recipe appears simple, these professional techniques ensure restaurant-quality results:

• Bean preparation matters: If using fresh beans, blanch them in boiling salted water for 4-5 minutes, then immediately plunge into ice water to preserve vibrant color and crisp-tender texture
• Sauce consistency: For a thicker sauce, reduce milk to 1/3 cup; for a creamier texture, increase to 2/3 cup
• Onion timing: Adding half the onions at the end prevents them from becoming soggy during baking
• Flavor boost: Sauté 4 ounces of fresh mushrooms in 1 tablespoon of butter before adding to the soup mixture for enhanced mushroom flavor
• Make-ahead option: Assemble the casserole (without the topping onions) up to 24 hours in advance, cover, and refrigerate; add 5-7 minutes to baking time if starting from cold

Popular Variations on the Classic Recipe

While the traditional campbell soup green bean casserole recipe remains beloved, these thoughtful modifications accommodate different dietary needs and flavor preferences without compromising the dish's essential character:

• Gluten-free version: Use Campbell's Gluten Free Cream of Mushroom soup and certified gluten-free fried onions
• Lighter alternative: Substitute low-sodium condensed mushroom soup, use skim milk, and replace half the fried onions with toasted almond slices
• Protein boost: Add 1/2 cup cooked, crumbled bacon or diced ham to the mixture before baking
• Vegetarian upgrade: Use vegetarian mushroom soup and add 1/2 cup toasted pecans with the final onion topping
• From-scratch sauce: For those avoiding canned soup, make a homemade mushroom sauce with 2 tablespoons butter, 8 oz sliced mushrooms, 1/4 cup flour, 1.5 cups milk, and seasonings

Serving and Storage Recommendations

This versatile side dish complements numerous main courses and adapts well to various meal occasions. For the best experience with your campbell's green bean casserole recipe:

• Ideal pairings: Serve alongside roasted turkey, baked ham, or glazed salmon for holiday meals; pairs well with meatloaf or pork chops for weeknight dinners
• Make it a complete meal: Add cooked chicken pieces or hard-boiled eggs on top for a protein-rich brunch option
• Storage: Keep leftovers in an airtight container in the refrigerator for up to 3 days
• Reheating: Warm individual portions in the microwave at 50% power for 2-3 minutes, or reheat the entire dish covered with foil at 325°F for 20 minutes, then uncover and bake 5 more minutes
• Freezing: Freeze unbaked casserole (without the topping onions) for up to 2 months; thaw in refrigerator before baking, adding 10-15 minutes to cooking time

Frequently Asked Questions

Can I use fresh mushrooms instead of Campbell's soup in green bean casserole?

Yes, you can create a homemade mushroom sauce by sautéing 8 ounces of sliced mushrooms in 2 tablespoons of butter until golden, then adding 2 tablespoons of flour to make a roux. Gradually whisk in 1.5 cups of milk and simmer until thickened. Season with salt, pepper, and 1 teaspoon of soy sauce to mimic the Campbell's flavor profile while maintaining the traditional green bean casserole texture.

Why does my green bean casserole turn out watery?

A watery green bean casserole typically results from using frozen green beans that haven't been properly thawed and drained, or from adding too much milk to the soup mixture. To prevent this issue, thoroughly drain cooked or thawed green beans in a colander and press out excess moisture. If using frozen beans, spread them on paper towels to absorb residual water before adding to the casserole.

How can I make my green bean casserole more flavorful without changing the classic recipe?

Enhance your traditional Campbell soup green bean casserole recipe by adding 1/4 teaspoon of garlic powder or a pinch of cayenne pepper to the soup mixture. You can also stir in 1 tablespoon of dry sherry or white wine to the sauce before baking. For extra umami, include 1 teaspoon of Worcestershire sauce along with the soy sauce in the original recipe.

Can I prepare Campbell's green bean casserole ahead of time?

Yes, you can assemble the casserole (without the crispy onion topping) up to 24 hours in advance. Cover tightly and refrigerate. When ready to bake, add 5-7 minutes to the initial baking time since you're starting with a cold dish. Add the crispy onions during the last 5 minutes of baking to maintain their crunch. Do not freeze the assembled casserole with the onions on top, as they will become soggy.

What's the best way to reheat green bean casserole without drying it out?

To reheat green bean casserole properly, add 1-2 tablespoons of milk or broth to the dish to restore moisture. Cover with foil and warm in a 325°F oven for 15-20 minutes until heated through. For individual portions, use the microwave at 50% power in 60-second intervals, stirring gently between intervals. Always add fresh crispy onions after reheating to maintain the signature crunchy topping that defines the classic Campbell's green bean casserole experience.