Few side dishes capture the taste of comfort and tradition like a classic Campbell’s Green Bean Casserole. This creamy, crunchy, and savory dish has been a holiday staple on American dinner tables for generations. Whether it’s Thanksgiving, Christmas, or a cozy Sunday dinner, this casserole delivers that familiar warmth everyone looks forward to.
Made with Campbell’s Cream of Mushroom Soup, tender green beans, and a crispy onion topping, it’s the perfect balance of flavor and texture. Best of all, this recipe comes together in just minutes and can be baked in either the oven or air fryer—ideal for busy cooks who still want to impress.
Why You’ll Love This Recipe
- Quick to prepare: Just a few minutes of prep and the oven does the rest.
- Creamy and comforting: A smooth mushroom sauce coats every bite of tender green beans.
- Crispy topping: The golden French fried onions add the perfect crunch.
- Versatile: Works with canned, fresh, or frozen green beans.
About the Ingredients
Condensed Cream of Mushroom Soup
This ingredient serves as the creamy base that ties everything together, giving the dish its signature flavor and texture.
Milk
Milk thins the soup to the perfect consistency for coating the beans, ensuring a smooth and creamy result.
Soy Sauce
Soy sauce adds a subtle umami flavor that enhances the richness of the casserole.
Green Beans
The star of the show—use canned for convenience, frozen for texture, or fresh for the best flavor.
Black Pepper
Black pepper adds mild heat and depth to the dish, balancing the creamy flavors.
Crispy French Fried Onions
These provide that irresistible crunch and classic onion flavor, making the casserole truly memorable.
Tips & Tricks
Dry the Green Beans Well
Removing excess moisture from the beans prevents a watery casserole and ensures the sauce clings perfectly.
Use High-Quality Soup
Choosing Campbell’s brand gives the richest, most authentic taste, making a noticeable difference in the final dish.
Mix Thoroughly
Ensure all beans are evenly coated for consistent creaminess throughout the casserole.
Pro Tips
- Blanch fresh green beans before baking to maintain their vibrant color and texture.
- Add the onions at the end of baking to keep them crisp and golden rather than soggy.
- Don’t overbake: Too much time in the oven can dry out the sauce, so keep an eye on it.
Step-by-Step Instructions
Prepare the Green Beans
If using fresh beans, wash, trim, and cut them into bite-sized pieces. Blanch in boiling water for 2 minutes, then drain well. For canned beans, drain and rinse. For frozen beans, thaw and drain thoroughly.
Create the Sauce
In a large mixing bowl, whisk together the cream of mushroom soup, milk, and soy sauce until smooth. This creates the creamy base that brings the casserole together.
Combine Ingredients
Add the green beans and ⅔ cup of crispy fried onions to the sauce mixture. Season with black pepper and stir until evenly coated, ensuring every bean is covered in the delicious sauce.
Spread in Baking Dish
Spray a 9x9-inch baking dish with nonstick spray and spread the mixture evenly inside. This ensures even cooking and prevents sticking.
Bake the Casserole
For the oven, preheat to 350°F (175°C) and bake for 25 minutes. In an air fryer, cook at 350°F for 10 minutes, then stir. This step cooks the beans and melds the flavors together.
Add Crispy Onions
Sprinkle the remaining onions evenly over the top. In the oven, return for 5 more minutes until golden. In the air fryer, cook 2 more minutes until crisp.
Cool and Serve
Let the casserole cool slightly before serving. Add extra onions on top if you love more crunch, enhancing the texture and flavor.
Delicious Variations
Cheesy Green Bean Casserole
Add 1 cup of shredded cheddar cheese to the sauce for a rich, cheesy twist.
Bacon Green Bean Casserole
Mix in 1/2 cup of cooked, crumbled bacon for a savory and smoky flavor addition.
Garlic Green Bean Casserole
Add 1 teaspoon of minced garlic to the sauce for an aromatic and flavorful boost.
How to Store Easy Campbell’s Green Bean Casserole
Refrigerator
Store in an airtight container for up to 4 days to maintain freshness.
Freezer
Freeze the baked casserole for up to 2 months. Reheat directly from frozen for a convenient holiday shortcut.
Room Temperature
Keep at room temperature for no more than 2 hours to prevent spoilage.
Reheating
Warm in the oven at 350°F for 10–15 minutes or microwave in short bursts until heated through.
Frequently Asked Questions
Can I prepare this casserole ahead of time?
Yes! Assemble everything except the onion topping, cover tightly, and refrigerate for up to 24 hours. When ready to bake, add the onions and cook as directed.
Can I use cream of chicken or celery soup instead?
Absolutely. Both options work well, but the traditional flavor comes from Campbell’s Cream of Mushroom Soup.
How can I make it extra creamy?
Add an extra tablespoon of milk or a small splash of heavy cream to the sauce mixture before baking.
What’s the best type of green beans to use?
Fresh beans offer the best flavor and texture; blanch before baking. Frozen beans provide a great balance of freshness and convenience; thaw and drain. Canned beans are the most convenient but should be rinsed well to remove excess salt.
How do I keep the onions crispy?
Add the onions at the end of baking to keep them crisp and golden rather than soggy.