Side Dishes
This Campbell's canned green bean casserole recipe brings back the comforting flavors of childhood dinners with its signature creamy texture and crispy fried onion topping.
The secret to recreating that nostalgic taste lies in balancing the canned soup, green beans, and milk for a rich, velvety sauce that's foolproof every time. I've perfected this method over years of holiday gatherings, ensuring the perfect blend of creamy and crunchy elements that make this dish a classic.
The beauty of this recipe is its simplicity—just a handful of ingredients and 30 minutes in the oven transforms basic pantry staples into a dish that feels like a warm hug on a plate.
The canned green beans and cream soup provide the creamy base, while a sprinkle of fried onions adds that satisfying crunch. This version stays true to the original while offering flexibility for personal touches like extra cheese or herbs.
What you'll end up with is a creamy, bubbling casserole topped with golden, crispy fried onions that create the perfect textural contrast. The aroma alone will fill your kitchen with memories of family meals, while the taste delivers that familiar comfort food experience.
It's the kind of dish that disappears quickly, leaving everyone asking for seconds.
Whether you're serving it at a holiday dinner or a casual weeknight meal, this casserole brings restaurant-quality results without the fuss. The instructions are straightforward, and the ingredients are easy to find, making it perfect for both beginners and experienced cooks. Let's get started on recreating this timeless classic!
Ingredients for campbell's canned green bean casserole
Just eight pantry staples transform into nostalgic comfort that tastes like grandma's kitchen.
| Ingredient | Amount | Notes |
|---|---|---|
| Campbell's Cream of Mushroom Soup 🍄 | 2 cans | 9 oz each, full-fat for creaminess |
| Canned Green Beans 🌿 | 2 cans | 14.5 oz each, drained and rinsed |
| Whole Milk 🥛 | 1 cup | Full-fat for richest texture |
| French Fried Onions 🧅 | 1 cup | Store-bought or homemade fried |
| Shredded Cheddar Cheese 🧀 | 1 cup | Sharp cheddar preferred |
| All-Purpose Flour 🌾 | 2 tbsp | For thickening sauce |
| Salt 🧂 | ½ tsp | Diamond Crystal preferred |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground for best flavor |
| Garlic Powder 🧄 | ½ tsp | For subtle depth |
| Butter 🧈 | 2 tbsp | Unsalted, melted |
| Fresh Parsley 🌿 | 2 tbsp | Chopped, optional garnish |
The Campbell's Cream of Mushroom Soup is the heart of this dish—stick with the full-fat version for that classic velvety texture. Grocery store brands work fine, but the original Campbell's has that nostalgic depth. Grab the canned green beans too—Del Monte or Green Giant are the most reliable. For the fried onions, French's brand is a must-have in my pantry (the blue can), but homemade fried onions with onion rings and a pinch of sugar are worth the effort if you're feeling fancy. The shredded cheddar should be sharp, not mild—it makes all the difference in that creamy topping layer.
No Campbell's Cream of Mushroom? Cream of celery soup works in a pinch, though the flavor will be slightly different. Short on green beans? Mixed vegetables or peas keep the dish balanced. The milk can be swapped for half-and-half if you want extra richness, but whole milk keeps it true to the classic. For the fried onions, crushed potato chips add a similar crunch if you're out. The garlic powder is optional but worth including—it elevates the whole dish without overpowering. And if you're feeling adventurous, swap half the cheddar for Gruyère for a gourmet twist.
This casserole reheats beautifully—cover with foil if it's too hot straight from the oven. Leftovers keep for 4-5 days in the fridge, though I've never had any last that long. For make-ahead convenience, assemble it the night before and bake in the morning—the flavors meld even better. The fried onions stay crispy for about 2 days if stored in an airtight container, so add them fresh when serving if you're prepping ahead.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe because it’s literally three bowls and a pan. Drain the green beans, dump in the soup and milk, stir—boom—creamy base. Top with cheese and onions, bake, and walk away. No chopping, no fuss, just pure hands-off cooking.
- Creamy Crunch Combo: That first bite? Chef’s kiss. The Campbell’s soup brings rich, garlicky depth, while the fried onions deliver a buttery crunch that makes the whole dish sing. Here’s what sold me—it’s the kind of flavor that turns a simple casserole into something you’d order at a diner.
- Lazy Meal Prep Win: Make it once, eat it all week. The leftovers reheat beautifully—just add a splash of milk to loosen it up. Honestly, I’ve taken this to potlucks, game nights, and even my book club (yes, even on a Tuesday night) because it’s always a crowd-pleaser without requiring a second thought.
- Budget-Friendly Feast: For under $10, you’ve got a dish that feeds six. Canned beans, a soup can, and a bag of cheese stretch further than you’d think. Between us, this is my go-to when I need to feed a houseful without breaking the bank—and it still tastes like you slaved over it.
Step-by-step instructions for Campbell's canned green bean casserole
This classic comfort dish delivers that perfect creamy crunch combination every time—just follow these simple steps.
Prepare the Creamy Green Bean Base
In a large mixing bowl, combine the 2 cans Campbell's Cream of Mushroom Soup with the 1 cup Whole Milk. Stir until smooth and fully incorporated. The mixture should be velvety and free of any lumps. This is your foundational sauce that will give the casserole that signature creamy texture.
Next, add the 2 cans Canned Green Beans (drained and rinsed) to the soup mixture. Gently fold them in using a rubber spatula, ensuring each bean is evenly coated with the creamy sauce. This step is crucial for maintaining the beans' integrity while infusing them with flavor. If you notice any excess liquid in the bowl, drain it slightly to prevent a watery casserole later.
Create the Crispy Topping Mixture
In a separate bowl, melt the 2 tbsp Butter over low heat in a small saucepan. Once melted, remove from heat and whisk in the 2 tbsp All-Purpose Flour until you form a smooth paste. This creates a roux that will help bind the topping together and add a subtle richness.
Add the 1 cup French Fried Onions to the butter mixture and stir until they're evenly coated. The onions should look glistening and slightly sticky from the butter. Sprinkle in the 0.5 tsp Salt, 0.25 tsp Black Pepper, and 0.5 tsp Garlic Powder, mixing well to distribute the seasoning evenly. This flavorful topping is what makes this casserole irresistibly crunchy on top.
Assemble and Bake to Golden Perfection
Preheat your oven to 350°F. Grease a 9x13-inch baking dish with butter or cooking spray to prevent sticking. Pour the green bean and soup mixture into the prepared dish, spreading it evenly across the bottom. The layer should be about 1-inch thick for even baking.
Sprinkle the cheesy topping evenly over the green bean mixture, pressing down gently with the back of a spoon to ensure good contact between layers. The 1 cup Shredded Cheddar Cheese should melt beautifully into a golden, bubbly crust. Bake for 25-30 minutes until the top is golden brown and the edges are bubbling.
Finish with Fresh Garnish and Rest
Remove the casserole from the oven and let it rest for 5 minutes. This resting period allows the layers to set slightly and prevents any potential sliding when serving. The internal temperature should reach 165°F, ensuring the green beans are heated through while maintaining their tender texture.
Before serving, sprinkle the 2 tbsp Fresh Parsley over the top for a pop of color and freshness. The parsley not only looks beautiful but also adds a subtle brightness that cuts through the richness of the cheese and cream. Serve immediately while the top is still crispy and the cheese is melty—this casserole is best enjoyed fresh from the oven!
Pro Tips For Making Campbell'S Canned Green Bean Casserole
- Drain and Rinse Beans: That salty canned green bean water is a flavor killer. Dump the beans into a colander and rinse them under cold water before mixing—it cuts the saltiness by half and lets the cream of mushroom soup shine without competing.
- Simmer the Sauce: After mixing the soup, milk, and cheese, don’t just dump it on the beans. Heat the sauce separately over low heat for 3–4 minutes until it thickens slightly. This keeps the casserole from turning into a soggy mess when you bake it.
- Toast the Onions: Skip the pre-packaged fried onions if you can—buy plain breadcrumbs and fry them yourself in butter until golden. They crisp up better and add a deeper, nuttier flavor. (Yes, it’s extra work, but the texture makes it worth it.)
- Bake Until Bubbly: The casserole’s done when the edges are bubbling and the center jiggles just slightly—like a wobbly Jell-O. Overbaking dries it out; underbaking leaves it gummy. Check at 20 minutes, then cover loosely with foil if it browns too fast.
Storing and reheating your leftovers
Refrigerator Storage
Store your green bean casserole in an airtight container with a lid, allowing it to cool completely first to prevent condensation. I use glass Pyrex dishes with snap-on lids—they keep the dish fresh while maintaining that signature creamy texture.
Keep it refrigerated at 40°F or below for up to 4-5 days, though I’ve never had leftovers last that long with how quickly this disappears! 🥫
Freezer Prep Tips
For long-term storage, assemble the casserole in a freezer-safe baking dish (like Ceramic Corningware) and cover tightly with aluminum foil followed by plastic wrap. Label with the date and freeze for up to 3 months.
Thaw overnight in the fridge before reheating for best results. The texture holds up surprisingly well, though the fried onions may lose some of their crunch.
Stovetop Reheating
My preferred method is stovetop reheating in a heavy-bottomed skillet or Dutch oven. Cover the casserole with a lid and heat on medium-low for 15-20 minutes, stirring occasionally to redistribute the creamy sauce.
Add 1-2 tablespoons of milk if it looks dry. This method preserves the crispy onion topping better than microwave reheating. 🔥
Microwave Method
For quick reheating, transfer individual portions to a microwave-safe dish and cover loosely with a damp paper towel. Heat on 50% power for 2-3 minutes, then stir and continue in 30-second intervals until reaching 165°F.
The microwave can make the topping soggy, so add fresh fried onions on top after reheating to restore crunch.
Oven Refresh
If you want restaurant-quality results, transfer the casserole to a preheated 350°F oven for 10-15 minutes covered with foil. Remove the foil for the last 2-3 minutes to crisp the cheese topping. This method is perfect for serving a crowd straight from the oven—just like grandma made it! 🍽️
Reviving Stale Toppings
If your fried onions lose their crunch, revive them by sprinkling with 1 tsp milk and broiling for 1-2 minutes until golden again. For extra flavor, toss with a pinch of smoked paprika before broiling. This trick works wonders for restoring that satisfying crunch without starting from scratch. ✨
Nutrition facts
Frequently asked questions
Can I make this casserole ahead of time?
Assemble the dish in a baking dish and refrigerate for up to 24 hours before baking. This actually enhances the flavors. For make-ahead convenience, you can even prepare the entire casserole (including topping) the night before and bake it fresh the next day. Just add 5-10 extra minutes to the baking time if it's cold from the fridge.
What can I substitute if I don't have French fried onions?
Try crushed potato chips for crunch or homemade fried onion rings mixed with a little butter. For a different texture, use 1/2 cup crushed Ritz crackers mixed with 1/4 cup grated Parmesan cheese. The key is to maintain that crispy contrast against the creamy base.
Why did my casserole turn out watery?
This usually happens when too much liquid remains from the green beans or when the baking time isn't sufficient. Always drain and rinse canned beans thoroughly, and bake until the edges bubble and the center reaches 165°F. For extra insurance, spread the mixture in a 9x13-inch dish instead of a larger one.
Can I make this recipe vegetarian?
Yes! Simply replace the Campbell's Cream of Mushroom Soup with a vegetarian cream of mushroom soup (like Imagine or Pacific Foods brands) and ensure your cheese is dairy-free if needed. The rest of the recipe remains the same. The creamy texture will still shine through beautifully.
How do I keep the fried onion topping crispy?
Press the topping mixture firmly into the casserole before baking to create maximum contact with the hot filling. Bake uncovered for the last 2-3 minutes to crisp the cheese, and avoid overmixing the topping—this can make it soggy. For extra crunch, sprinkle fresh fried onions on top right before serving.