There’s something about Classic Campbells Green Bean Casserole that never goes out of style. Whether it’s gracing your Thanksgiving table or showing up at summer potlucks, this creamy, crunchy side dish has stood the test of time. Loved for its simplicity and nostalgic taste, it combines green beans, cream of mushroom soup, and crispy fried onions into one irresistible comfort food. In this article, we’ll explore why this casserole became a staple, break down the original recipe, offer helpful tips, and show you how to make it ahead or customize it to suit your dietary needs. Looking for inspiration? Try our Southern Green Bean Casserole Recipe for a flavorful twist!
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What Makes Campbells Green Bean Casserole a Classic Favorite?
The Story Behind the Iconic Recipe
Back in 1955, Dorcas Reilly created what would become one of America’s most cherished side dishes while working in the Campbell’s Soup Company test kitchen. Designed to be easy and use pantry staples, this casserole brought convenience and flavor to the dinner table. The original recipe card is even housed at the National Inventors Hall of Fame—a testament to its cultural significance.
Why It Became a Thanksgiving Tradition
Thanksgiving is all about comfort and heritage, and nothing embodies that better than green bean casserole. With its creamy base and crispy onion topping, it fits right alongside turkey, stuffing, and cranberry sauce. But the real reason it became a holiday essential? You can prep it in minutes with minimal ingredients. Discover great ideas like our Perfect Homemade Stuffing Recipe to complete your festive spread.
How It Fits into Modern Family Meals
While it’s often tied to holidays, this dish has earned its place in everyday meals. It’s kid-friendly, budget-friendly, and requires no chopping if you use frozen green beans. Pair it with rotisserie chicken, baked ham, or grilled meat for a satisfying side year-round. Check out our Creaminess Baked Mashed Potatoes for another cozy weeknight winner.
Essential Ingredients and Substitutions for the Perfect Casserole
Core Ingredients You’ll Need
Here’s what you’ll need for the traditional version of this recipe:
| Ingredient | Purpose |
|---|---|
| Cream of Mushroom Soup | Adds creaminess and umami mushroom flavor |
| Milk | Thins out the soup to achieve perfect texture |
| Soy Sauce | Enhances flavor with subtle saltiness |
| Frozen Green Beans | Offers crisp texture and convenience |
| French Fried Onions | Brings crunch and savory bite to the top |
Looking for something extra comforting? Don’t miss our Cheesy Root Vegetable Gratin Recipe for an indulgent option.
Vegan, Gluten-Free, and Allergy-Friendly Alternatives
Want to make it vegan or gluten-free? Here’s how:
- Vegan Swap: Use dairy-free cream of mushroom soup, unsweetened almond milk, and gluten-free fried onions.
- Gluten-Free Fix: Choose gluten-free soy sauce and mushroom soup, and confirm the onions are GF-certified.
- Allergy Tip: Always double-check store-bought ingredients for allergens like soy or dairy.
Choosing Between Frozen, Fresh, or Canned Green Beans
Each option brings its own pros and cons:
- Frozen: Closest to fresh in flavor, no prep needed—just thaw.
- Fresh: Crisp and vibrant, but requires washing, trimming, and blanching.
- Canned: Super convenient but softer in texture and more processed in taste.
Our go-to? Frozen. It strikes the perfect balance between ease and flavor.
Step-by-Step Instructions for Making Classic Campbells Green Bean Casserole
Preparation Tips for a Creamier Texture
If you’re looking to master the perfect texture, it starts with your ingredients. First, make sure your frozen green beans are fully thawed. Excess moisture can dilute the creamy base and lead to a watery casserole.
Next, combine the cream of mushroom soup and milk thoroughly in a bowl before adding the soy sauce. This ensures that every green bean gets coated evenly. Don’t rush—stir gently and let the ingredients blend smoothly. Fold in ⅔ of your fried onions at this stage. They’ll add flavor and softness inside the bake while reserving the rest for that golden topping.
Lightly grease your baking dish to prevent sticking. Pour the mixture into a 9×9 dish and spread it evenly for a consistent bake.
Want to make a hearty meal of it? Don’t miss our Crockpot Kielbasa and Green Beans that makes a great main dish pairing.
Oven Temperature, Cook Time, and Golden Topping
Here’s the breakdown for perfect results:
| Step | Time | Notes |
|---|---|---|
| Preheat Oven | 350°F | Standard for most casseroles |
| First Bake | 25 minutes | Bake uncovered until bubbling |
| Add Remaining Fried Onions | Last 5 min | Bake again to make the topping crispy |
| Total Time | 30 minutes | From oven entry to golden perfection |
After the final 5 minutes, you’ll see a golden, crispy top that’s the signature of this dish. Serve hot for best flavor and texture.
Looking for more make-ahead dishes? Check out our Thanksgiving Appetizer Deviled Eggs for prep-ahead goodness.
Can You Make It Ahead or Freeze It?
Absolutely! That’s one of the reasons this casserole is a go-to for busy holidays or weeknight dinners. Here’s how:
- Make Ahead: Mix everything together (except for the final onion topping), cover, and refrigerate up to 2 days. On the day you need it, bake as directed and top with fresh onions.
- Freezing Tips: You can freeze the unbaked casserole without the fried onions. When ready to serve, thaw overnight in the fridge, bake, and add onions at the end. If you’re freezing leftovers, know the onions might go soft—but you can always refresh them with a new sprinkle before reheating.
Pro tip: Avoid overbaking when reheating. Cover with foil and heat in the oven until just warm, then uncover to crisp the top. Don’t miss our Turkey Gravy Recipe—a perfect companion to this side.
Expert Tips to Upgrade Your Green Bean Casserole
Adding Proteins Like Bacon or Chicken
If you want to transform this side into a meal or simply boost the flavor, protein is your friend. Crumbled bacon adds a smoky crunch and blends well with the creamy mushroom base. For something heartier, stir in diced rotisserie chicken before baking. It keeps the prep easy while making the dish more filling.
Looking for inspiration? Try our Crock Pot Chicken and Rice Recipe as a protein-packed main dish to serve alongside.
Mixing Cheeses or Crunchy Toppings
Another flavorful way to elevate your casserole is by mixing in cheese. Shredded cheddar or parmesan adds creaminess and sharpness. Stir a handful into the base or sprinkle some on top just before the final bake. Don’t be afraid to get creative with toppings—breadcrumbs, crushed crackers, or even crispy onions with a garlic butter drizzle can enhance both texture and taste.
Regional Variations Across the U.S.
Different regions bring their own flair to this classic. In the South, you’ll often find versions that add pimentos or hot sauce for a touch of heat. Up North, sharp white cheddar or buttery breadcrumbs are common upgrades. On the West Coast, home cooks often opt for organic cream soups and fresh green beans.
These twists give the dish a personal touch while keeping the comforting core intact. Want more comforting sides? Don’t miss our Creamy Cucumber Salad Recipe—perfect for year-round meals.
Common Questions About Campbells Green Bean Casserole
Can You Swap the Mushroom Soup?
Yes, you can substitute cream of mushroom with cream of chicken, cream of celery, or even vegan mushroom soup. Just be mindful that each option slightly changes the flavor profile. If you’re not a mushroom fan, cream of chicken is your best bet for a milder taste.
How to Store and Reheat Leftovers
Store leftovers in an airtight container in the refrigerator for up to 4 days. To reheat:
- Oven: Place in a covered dish and warm at 325°F for 10–15 minutes.
- Microwave: Use short intervals and stir in between to avoid soggy edges.
Recrisp the onions by tossing on a fresh handful and heating uncovered for the last few minutes.
Is This Dish Dog-Friendly or Kid-Safe?
This one’s for humans only. Fried onions and mushrooms can be harmful to dogs, so avoid sharing. But for kids? It’s one of the easiest side dishes they can help make—and they love it. No knife work, just mix and bake.

Frequently Asked Questions (FAQs)
What is the difference between French’s and Campbell’s green bean casserole?
French’s focuses on the crispy onions, while Campbell’s provides the full creamy recipe. Most versions today combine both for the best taste.
Why is my green bean casserole runny?
The green beans may not have been fully thawed or drained. Excess water can thin out the soup base.
Can you use canned or fresh green beans?
Yes. Canned beans make for a softer texture, while fresh beans offer more bite—but need pre-cooking.
How do you keep fried onions crispy?
Add them during the last 5 minutes of baking and don’t cover the casserole when storing.
Conclusion: Why This Classic Is Still Worth Making Today
There’s a reason Classic Campbells Green Bean Casserole has stayed on American tables for nearly 70 years. It’s fast, flexible, family-approved, and full of comfort. Whether you’re sticking to the original or giving it your personal spin, it’s the kind of dish that brings people together—year after year, meal after meal.
Don’t miss our Thanksgiving Piecaken Recipe if you’re ready to serve up dessert with the same nostalgic vibes.
PrintClassic Campbells Green Bean Casserole
Classic Campbells Green Bean Casserole is a creamy, crispy, and nostalgic side dish made with green beans, cream of mushroom soup, and fried onions—perfect for holidays or everyday meals.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 6 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 1 (10.5 ounce) can Cream of Mushroom Soup
- 1/2 cup milk
- 1 teaspoon soy sauce
- 4 cups frozen green beans, thawed
- 1 1/3 cups French fried onions (divided)
Instructions
- Preheat oven to 350°F (175°C).
- Spray a 9×9 casserole dish with non-stick cooking spray.
- In a medium bowl, mix cream of mushroom soup and milk until well combined.
- Add soy sauce and thawed green beans; stir until evenly coated.
- Mix in 2/3 cup of fried onions and stir well.
- Transfer the mixture to the prepared casserole dish and spread evenly.
- Bake uncovered for 25 minutes.
- Remove from oven and sprinkle remaining fried onions on top.
- Bake for an additional 5 minutes until the top is golden and crispy.
- Serve hot and enjoy.
Notes
- Ensure green beans are fully thawed to avoid a watery casserole.
- You can prep this dish up to 2 days in advance before baking.
- Freeze unbaked casserole for later use, but add onions fresh before baking.
- Swap cream of mushroom for cream of chicken or celery if preferred.
- Add cooked bacon or cheese to upgrade the flavor.
Nutrition
- Serving Size: 1 serving
- Calories: 188
- Sugar: 8g
- Sodium: 589mg
- Fat: 9g
- Saturated Fat: 2g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 23g
- Fiber: 4g
- Protein: 6g
- Cholesterol: 6mg
