Classic Campbell’s Green Bean Casserole delivers creamy, crispy comfort in 30 minutes. Perfect for Thanksgiving with French fried onions.
Hi, I’m Linda, and welcome to Tasty at Home—where bold flavors meet everyday kitchens.
Let me tell you, the first time I attempted green bean casserole was a disaster. I was nineteen, hosting my first Thanksgiving, and somehow managed to forget the casserole in the oven until the smoke alarm reminded me. That charred mess taught me everything about timing and temperature control.
Fast forward twenty years, and I’ve made this classic Campbell’s green bean casserole at least fifty times. Consequently, I’ve learned every shortcut, every texture secret, and every way to rescue it when things go sideways. Moreover, I’ve tested both oven and air fryer methods so you can choose what works best.
This iconic dish emerged from the Campbell’s test kitchen in 1955. Since then, it’s become as essential to Thanksgiving as turkey itself. The combination of tender green beans, velvety mushroom soup, and those addictive crispy onions creates pure comfort food magic.
Table of Contents
What Makes This Green Bean Casserole Special

This traditional green bean casserole requires just six ingredients you probably already own. However, the real secret lies in the technique—specifically, how you layer flavors and achieve that perfect creamy-to-crispy ratio.
Most recipes skip the soy sauce, but that single teaspoon adds umami depth that transforms ordinary into extraordinary. Additionally, the milk creates a silkier texture than soup alone ever could. You know what? These small adjustments make all the difference between “good enough” and “please give me the recipe.”
Ingredient Quality Indicators
Choose green beans that snap crisply when bent. Fresh beans should feel firm and show vibrant green color without brown spots. For canned options, select brands with low sodium content to control salt levels better.
French fried onions lose crunch quickly after opening. Therefore, buy the smallest container you’ll use within two weeks, or store opened packages in an airtight container with silica packets.
Ingredients Table
Ingredient | US Measure | Metric | Notes |
---|---|---|---|
Condensed Cream of Mushroom Soup | 10.5 oz can | 298g | Campbell’s preferred |
Milk | 1/2 cup | 120ml | Whole milk for richness |
Soy sauce | 1 tsp | 5ml | Adds umami depth |
Cut green beans | 4 cups | 600g | Fresh, frozen, or canned |
French fried onions | 1 1/3 cup | 85g | Divided use |
Black pepper | 1/4 tsp | To taste | Freshly ground |
Shopping Tips for US Grocery Stores
Campbell’s condensed soup sits in the canned goods aisle, usually near broths and stocks. Meanwhile, French’s French Fried Onions typically appear in two locations—either with canned vegetables or in the holiday baking aisle during November and December.
Fresh green beans peak from May through October at farmers’ markets. Nevertheless, frozen beans work beautifully year-round and require zero prep work. Canned beans offer convenience but contain more sodium, so adjust seasoning accordingly.
Smart Substitutions
For International Readers:
- Replace French fried onions with panko breadcrumbs mixed with melted butter
- Swap soy sauce with Worcestershire sauce or tamari
- Use any cream of mushroom soup brand available locally
Bold Add-Ins for Variation:
- Crispy bacon bits (1/2 cup)
- Sliced almonds instead of onions
- Fresh mushrooms sautéed with garlic
- Sharp cheddar cheese (3/4 cup shredded)
Essential Equipment and Preparation
Equipment You’ll Need
9×9-inch casserole dish: Glass or ceramic works perfectly. Alternatively, use an 8×8 for thicker casserole or a 9×13 for thinner layers.
Mixing bowl: Medium-sized, at least 2-quart capacity.
Colander: For draining canned beans or blanching fresh ones.
Large pot: Only necessary if using fresh green beans for blanching.
Measuring cups and spoons: Accuracy matters for proper consistency.
Thomas Keller always emphasizes mise en place—having everything measured and ready before cooking begins. This approach prevents scrambling mid-recipe.
How to Make Classic Campbell’s Green Bean Casserole
Prepare Your Casserole Dish
Spray your 9×9 casserole dish generously with cooking spray. Don’t skip this step—nobody wants to scrape stuck-on casserole remnants later. Set it aside within arm’s reach.
Prepare the Green Beans (5 minutes)
For fresh green beans: Trim ends, cut into 1.5-inch pieces, then blanch in boiling salted water for exactly 2 minutes. Immediately drain and rinse with cold water to stop cooking. This preserves that bright green color and crisp-tender texture.
For canned green beans: Simply drain them thoroughly in your colander. Press gently to remove excess liquid. Too much moisture creates soupy casserole instead of creamy comfort.
For frozen green beans: Thaw completely and pat dry with paper towels. Excess ice crystals add unwanted water.
Create the Creamy Base (3 minutes)
Combine the condensed soup and milk in your mixing bowl. Well, here’s where many people go wrong—they don’t whisk thoroughly enough. Stir vigorously until completely smooth with zero lumps remaining.
Next, add that crucial teaspoon of soy sauce. Oops! Almost forgot to mention—this ingredient doesn’t make the casserole taste Asian. Instead, it deepens savory notes like adding a secret weapon to your flavor arsenal.
Combine Everything (2 minutes)
Fold in your prepared green beans along with 2/3 cup of French fried onions (roughly half the container). Sprinkle black pepper to taste, then mix until every bean gets coated in creamy sauce.
Here’s my mistake confession: I once dumped all the onions in at this stage. They turned soggy and sad instead of maintaining that signature crunch. Always reserve some for topping.
Assemble and Bake
Transfer the mixture to your prepared dish, spreading evenly with a spatula. The surface should look relatively flat for even cooking.
Air Fryer Method (12 minutes total):
Set temperature to 350°F. Bake for 10 minutes, then carefully remove and stir the casserole. This ensures even heating throughout. Sprinkle remaining onions across the top, then cook 2 more minutes until golden and crispy.
The air fryer creates extra-crunchy onions faster than conventional ovens. However, it only works if your air fryer basket accommodates a 9×9 dish.
Oven Method (30 minutes total):
Preheat your oven to 350°F. Bake uncovered for 25 minutes until bubbling around edges. Remove from oven, give it a gentle stir, then add remaining onions on top. Return to oven for final 5 minutes until onions turn golden brown.
Julia Child believed in visual cues over strict timing. Watch for those bubbles breaking the surface and listen for that gentle sizzle—that’s how you know it’s ready.

Expert Tips and Creative Variations
Pro Tips for Perfect Results
Temperature matters: Room temperature ingredients blend more smoothly than refrigerator-cold ones. Therefore, let your milk sit out for 15 minutes before starting.
Don’t overbake: Overcooked green beans turn mushy and gray. Check at minimum time and add more only if needed.
Layer your onions strategically: Reserve the prettiest, most intact onions for topping. Use smaller pieces mixed throughout.
Make it ahead: Assemble completely, cover tightly, and refrigerate up to 24 hours. Add 5 extra minutes to baking time when cooking from cold.
Five Creative Variations
1. Southern Bacon Green Bean Casserole
Cook 6 strips bacon until crispy, crumble, and fold into mixture. Use bacon fat instead of cooking spray in the dish. This Southern green bean casserole approach adds smoky richness.
2. Cheesy Thanksgiving Green Beans
Stir in 3/4 cup sharp cheddar cheese with the beans. Top with mixture of remaining onions and 1/4 cup parmesan before final baking.
3. Mushroom Lover’s Version
Sauté 8 ounces sliced mushrooms with 2 minced garlic cloves in butter. Fold into casserole mixture for double mushroom flavor.
4. Lighter Green Bean Casserole Campbell’s Style
Use reduced-fat cream of mushroom soup and skim milk. Replace half the fried onions with toasted panko breadcrumbs.
5. Spicy Cajun Twist
Add 1/2 teaspoon cayenne pepper and 1 teaspoon Cajun seasoning to cream mixture. Top with crushed potato chips instead of onions.
Storage and Make-Ahead Guide
Storage Method | Duration | Reheating Instructions |
---|---|---|
Refrigerator (covered) | 3-4 days | 350°F for 15 minutes covered |
Freezer (before baking) | 2 months | Thaw overnight, bake as directed |
Freezer (after baking) | 1 month | 350°F for 20 minutes from frozen |
Never freeze assembled casserole with fried onions already on top. They’ll turn completely soggy. Instead, add fresh onions after reheating.
Perfect Pairings
Serve alongside homemade apple cobbler for a complete Thanksgiving spread. The sweet-tart apples balance the casserole’s savory richness beautifully.
Traditional green bean casserole pairs wonderfully with roasted turkey, honey-glazed ham, or herb-crusted prime rib. Additionally, it complements mashed potatoes, dinner rolls, and cranberry sauce without competing for attention.
For beverages, consider California Chardonnay, crisp hard cider, or simple iced sweet tea.
Classic Campbell’s Green Bean Casserole FAQs
How to cook green beans for Campbell’s green bean casserole?
You can use fresh, frozen, or canned green beans. Fresh beans need blanching in boiling water for 2 minutes, then draining. Frozen beans should be completely thawed and patted dry. Canned beans simply need thorough draining in a colander to remove excess liquid.
How many cans of green beans equal 4 cups?
Two standard 14.5-ounce cans of cut green beans equal approximately 4 cups after draining. Alternatively, one 16-ounce package of frozen green beans or 1.5 pounds of fresh green beans also yields about 4 cups when prepared.
Do you put soy sauce or Worcestershire in green bean casserole?
Traditional recipes use soy sauce for umami depth and enhanced savory flavor. However, Worcestershire sauce works as an excellent substitute if that’s what you have on hand. Both add similar complexity without overwhelming the mushroom cream base.
Why add milk to green bean casserole?
Milk thins the condensed soup to proper casserole consistency while adding creaminess. Without it, the mixture becomes too thick and paste-like. The milk also helps the sauce coat every green bean evenly throughout the dish.
Bringing It All Together

Man, oh man, does this classic Campbell’s green bean casserole bring back memories of family gatherings and holiday chaos. Every Thanksgiving, someone inevitably asks me to bring “that green bean thing,” and honestly, I’m honored every single time.
The beauty of this traditional green bean casserole lies in its simplicity. Six ingredients, thirty minutes, and you’ve got a side dish that satisfies both adventurous eaters and picky cousins alike. Moreover, the combination of textures—creamy sauce, tender beans, crunchy onions—creates something greater than the sum of its parts.
This year, try pairing it with gluten-free apple cider cupcakes for dessert. The warm spices echo autumn flavors beautifully. Alternatively, end your meal with no-bake Key lime cheesecakes for refreshing contrast.
Remember that smoke-alarm disaster from my first attempt? That burned mess taught me patience, attention to detail, and the importance of setting timers. Now you won’t repeat my mistakes because you’ve got the complete roadmap to casserole success.
Whether you’re cooking for two or twenty, this green bean casserole Campbell’s recipe scales beautifully. Double it for large crowds, halve it for intimate dinners, or make three pans because somehow it always disappears first.
After all, the best recipes aren’t just about food. They’re about gathering people we love, sharing stories, and passing down traditions one delicious bite at a time.

Classic Campbell’s Green Bean Casserole
Equipment
- 9×9-inch casserole dish
- Mixing bowl
- Colander
- Large pot
- Measuring cups and spoons
Ingredients
Main Ingredients
- 10.5 oz can Condensed Cream of Mushroom Soup Campbell’s preferred
- ½ cup Milk Whole milk for richness
- 1 tsp Soy sauce Adds umami depth
- 4 cups Cut green beans Fresh, frozen, or canned
- 1 ⅓ cup French fried onions Divided use
- ¼ tsp Black pepper Freshly ground
Instructions
- Spray your 9×9 casserole dish generously with cooking spray.
- For fresh green beans, trim ends, cut into 1.5-inch pieces, then blanch in boiling salted water for 2 minutes. Drain and rinse with cold water.
- For canned green beans, drain thoroughly in a colander.
- For frozen green beans, thaw completely and pat dry.
- Combine condensed soup and milk in mixing bowl; whisk until smooth. Add soy sauce.
- Fold in prepared green beans and 2/3 cup French fried onions. Sprinkle black pepper and mix.
- Transfer mixture to prepared dish and spread evenly.
- Air Fryer Method: Set 350°F, bake 10 min, stir, top with remaining onions, bake 2 more minutes until golden.
- Oven Method: Preheat 350°F, bake uncovered 25 min, stir, top with remaining onions, bake 5 more minutes until golden.