Side Dishes
Creating a Campbell's green bean casserole with cheese brings back memories of holiday dinners where comfort food ruled the table. This classic side delivers the perfect balance of creamy mushroom soup swirled with crispy fried onions and melted cheddar—all in one pan.
I’ve refined the technique over years to ensure that signature texture: tender green beans, velvety sauce, and a golden, crunchy topping that holds its shape.
The secret lies in the layering and baking process. First, you’ll simmer the green beans until they’re tender yet still hold their shape, then mix in the Campbell’s mushroom soup for that unmistakable creamy base.
The fried onions get baked until crispy, while the cheese melts into a bubbly blanket on top. It’s a foolproof method that transforms simple ingredients into a dish worthy of any holiday spread.
What makes this recipe special is how it combines nostalgia with modern convenience. You’ll achieve that creamy, restaurant-quality texture without hours of prep—just one pan, 30 minutes of baking, and a side dish that’s always a crowd-pleaser.
The best part? It reheats beautifully, making it perfect for meal prep or leftovers that taste just as good the second time around.
For those who love customization, you can swap the cheddar for a mix of sharp cheddar and Monterey Jack for extra richness, or even add a sprinkle of paprika for a subtle kick.
The possibilities are endless, but the foundation—creamy, cheesy, and crispy—remains the same. Let’s get started on this timeless classic!
Ingredients for campbell's green bean casserole recipe with cheese
Pantry staples plus a few fresh touches—this iconic casserole comes together faster than you think.
| Ingredient | Amount | Notes |
|---|---|---|
| Fresh Green Beans 🥦 | 2 lbs | Trimmed and cut into 2-inch pieces |
| Campbell's Cream of Mushroom Soup 🍄 | 2 cans | 10.5 oz each, undiluted |
| Sharp Cheddar Cheese 🧀 | 2 cups | Shredded, block preferred |
| French Fried Onions 🧅 | 1 ½ cups | Store-bought, crispy variety |
| Butter 🧈 | ½ cup | Unsalted, melted |
| All-Purpose Flour 🌾 | ¼ cup | For thickening sauce |
| Milk 🥛 | ½ cup | Whole for creaminess |
| Salt 🧂 | 1 tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ½ tsp | Freshly ground |
| Garlic Powder 🧄 | 1 tsp | For extra depth |
| Paprika 🌶️ | ½ tsp | Smoked for subtle kick |
| Fresh Parsley 🌿 | ¼ cup | Chopped, for garnish |
The green beans are your foundation. Fresh is ideal—they hold their shape better than frozen, but if that's all you've got, thaw and drain them first. Most grocery stores carry them pre-trimmed, which saves time. For the cheddar, block cheese is a must—pre-shredded gets clumpy when melted. I always grab Kraft or Cabot from the deli section when I'm doing a big batch. The French fried onions? Trader Joe's or Whole Foods have the best crispy ones—avoid the mushy kind in the back of the shelf. That's where the magic happens: creamy, cheesy, and crispy all in one bite.
No Campbell's soup? Homemade mushroom cream sauce works—sauté mushrooms, garlic, and flour, then add milk and butter. Short on cheddar? Monterey Jack or a mix of cheddar and Gruyère adds richness. The fried onions can be homemade too—just fry chopped onions in butter until golden and crispy. For the parsley, dried works in a pinch, but fresh gives that bright pop of color. The paprika is optional but worth it—it adds a subtle smokiness that ties everything together. Pro tip: Toast the flour and garlic powder together for 30 seconds in a dry pan before mixing—it deepens the flavor without adding heat.
This casserole tastes even better the next day—make it ahead and bake when guests arrive. Keeps in the fridge for 4-5 days and freezes beautifully for up to 3 months. I always double the recipe for holiday dinners—it disappears fast. For reheating, cover with foil and warm at 350°F for 15-20 minutes. The crispy onions soften slightly, but the cheesy swirls stay dreamy. Leftovers? Portion into containers so you can grab and go—perfect for lunches or quick dinners.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe because it’s literally one bowl, one pan, and done. Trim those beans, dump everything in, and let the oven do the work—no chopping onions or stirring pots. Even my college-dorm version (yes, I made this in a toaster oven) came out fine.
- Creamy Crunch Perfection: That crispy fried onion top? Chef’s kiss. The sharp cheddar melts into the creamy mushroom soup, while the onions add a salty crunch that makes every bite feel like a hug. Honestly, the first time I tasted it, I immediately texted my mom to thank her for making it growing up.
- Holiday or Weeknight: Between us, this dish works everywhere. Potlucks? Check. Thanksgiving leftovers? Double-check. Even a lazy Tuesday dinner when you’re too tired to think. The best part? It’s got that “special occasion” vibe without requiring a 10-step process.
- Budget-Friendly Leftovers: I make a double batch because it’s ridiculously cheap to feed a crowd, and the leftovers reheat like a dream. The beans stay tender, the cheese doesn’t get rubbery, and my kids fight over seconds—proof it’s a winner. Plus, the ingredients are pantry staples, so no last-minute grocery runs.
Step-by-step instructions for Campbell's green bean casserole with cheese
Here's how to create that perfect creamy, cheesy casserole with crispy fried onions on top—every layer delivers!
Prep the Green Beans and Make the Creamy Sauce
Trim the ends off the 2 lbs of fresh green beans and cut them into 2-inch pieces. Spread them on a baking sheet and toss with 1 tsp salt, 0.5 tsp black pepper, 1 tsp garlic powder, and 0.5 tsp paprika. Roast at 375°F for 15 minutes—this gives them a perfect head start on flavor and texture.
While the beans roast, melt the 0.5 cup butter in a large skillet over medium heat. Stir in the 0.25 cup all-purpose flour and cook for 1-2 minutes until bubbly. Slowly whisk in the 2 cans Campbell's Cream of Mushroom Soup and 0.5 cup milk, stirring constantly. Let it simmer for 5 minutes until thickened to a creamy consistency. Taste and adjust seasoning if needed—this is your flavor foundation!
Assemble the Casserole Layers
Transfer the roasted green beans to a 9x13-inch baking dish. Pour the creamy sauce mixture evenly over the top, spreading it with a spatula to coat all the beans. Sprinkle the 2 cups shredded sharp cheddar cheese evenly across the surface—this will melt into a luscious blanket when baked.
Here's the secret to that perfect crunchy top: arrange the 1.5 cups French fried onions in an even layer over the cheese. Press them down gently so they stay put during baking. The onions will get extra crispy while the cheese melts into a creamy swirl beneath.
Bake to Golden Perfection
Bake uncovered at 375°F for 25-30 minutes until the top is deep golden brown and the cheese has melted completely. The edges should be bubbly, and you should see that beautiful contrast of crispy onions against creamy cheese. If the onions aren't quite brown enough, broil for 1-2 minutes at the end—watch closely so they don't burn!
Let the casserole rest for 10 minutes before serving. This resting time lets the cheese set slightly and makes it easier to slice. Garnish with the 0.25 cup chopped fresh parsley just before serving—it adds a bright pop of color and freshness that cuts through the richness.
Serve Warm and Enjoy Immediately
Cut into squares and serve warm—this casserole is best enjoyed straight from the oven while the cheese is still gooey and the onions are crispy. The contrast of textures is what makes this dish so special: tender green beans, creamy mushroom sauce, and that perfect crunch from the fried onions.
Real talk: this casserole tastes even better the next day, but it won't last long in your house! The flavors meld beautifully overnight, and the onions stay crispy for hours. Store leftovers covered in the fridge for up to 3 days—just reheat in the microwave until bubbly and crispy again.
Pro Tips For Making Campbell'S Green Bean Casserole Recipe With Cheese
- Blister the Beans First: Toss raw green beans with a drizzle of oil and salt, then roast them at 425°F for 10-12 minutes until edges are browned. This step adds texture and depth that steamed beans never will—no one will believe you didn’t buy them pre-roasted.
- Melt Cheese Slowly: Skip dumping shredded cheddar straight from the bag into the hot casserole—it’ll clump like glue. Instead, melt a knob of butter first, stir in half the cheese until smooth, then fold in the rest. The sauce will coat every bean evenly, and you’ll avoid that sad, gummy top layer.
- Toast Onions Separately: French fried onions lose their crunch when baked in the casserole’s moisture. Toast them in a dry skillet over medium heat for 2-3 minutes until golden and fragrant, then sprinkle them on top right before serving. That crispy contrast is what makes this dish sing.
- Stir in the Soup Cold: I used to warm the Campbell’s soup first, but it makes the sauce watery. Use it straight from the fridge—it’ll heat through perfectly while the beans cook, and the creaminess stays rich. Just give the whole dish a stir halfway to even out the temperature.
Essential equipment for this recipe
Must-Have Baking Dish
You’ll need a 9x13-inch baking dish—this is non-negotiable for even baking and that perfect golden crust. I swear by Ceramic CorningWare dishes because they distribute heat evenly and hold up to high temperatures without warping.
If you’re on a budget, a heavy-duty glass baking dish from Pyrex works just as well. Avoid thin metal pans—they can cause hot spots and uneven cooking. 🔥
Crispy Onion Prep
Store-bought French fried onions are a game-changer, but if you’re making them from scratch, grab a 12-inch cast-iron skillet for even frying. I use a Lodge cast iron because it retains heat perfectly and crisps onions to golden perfection.
For the best results, fry onions in small batches in 2 tablespoons butter per batch—overcrowding steams them instead of crisping. A slotted spoon is essential for draining excess oil before layering.
Mixing Tools
A whisk is your best friend for blending the creamy sauce smoothly—avoid wooden spoons here, as they can leave lumps. I also recommend a heatproof spatula (like OXO Good Grips) for spreading the sauce evenly over the green beans.
For shredding cheese, a box grater gives you the most control over texture—pre-shredded cheese gets clumpy when melted. A microplane works too if you’re feeling fancy. 🧀
Oven Thermometer
Your oven’s temperature gauge can be off by 25°F or more, and that’s a disaster for this casserole. An oven thermometer ($5 at any kitchen store) is a tiny investment that ensures your 375°F setting is accurate.
I keep one in my oven at all times—it’s saved me from undercooked or burnt casseroles more times than I can count. Pro tip: Place it in the middle rack while preheating to get the most precise reading.
Broiler Accessory
If you’re using the broiler to crisp up the onions at the end, keep a heat-resistant spatula or tongs nearby—this helps you quickly adjust the casserole if it starts browning too fast.
A wire cooling rack placed on a baking sheet is also handy for resting the casserole after baking. It prevents sogginess and keeps the crispy onions intact while the cheese sets. 💫
Storage Containers
For leftovers, transfer portions into glass airtight containers (like Pyrex or Le Creuset) to maintain texture. I avoid plastic for reheating—it can absorb odors and doesn’t reheat as evenly. Label containers with the date and store in the fridge for up to 5 days or freeze for 3 months.
A sharp chef’s knife is also key for slicing leftovers neatly—dull knives crush the crispy onions and make the cheese stringy.
Nutrition facts
Frequently asked questions
Can I use frozen green beans instead of fresh?
Frozen green beans work perfectly—just thaw and drain them well before using. For extra flavor, toss them with a pinch of salt and 1 tsp garlic powder before mixing with the sauce. The texture will be slightly softer than fresh, but the creamy cheese and crispy onions still shine.
How do I keep the fried onions extra crispy?
The secret is baking time and placement. Arrange the onions in a single layer on top of the cheese, pressing lightly so they stay put. Bake uncovered for 25-30 minutes at 375°F, then broil for 1-2 minutes at the end—watch closely to avoid burning. For even more crunch, sprinkle a tiny bit of cornstarch over them before baking.
Can I make this casserole ahead of time?
Yes! Assemble it completely (even the fried onions) up to 24 hours ahead and refrigerate uncovered. Bake straight from the fridge at 375°F for 35-40 minutes—add 5 extra minutes if it was chilled. For freezing, bake fully, cool, then cover tightly. Reheat covered at 350°F for 20 minutes—the onions may soften slightly but still taste amazing.
What if my cheese gets too bubbly or oily?
This happens when the cheese gets too hot. To fix it, bake at a slightly lower temp (350°F instead of 375°F) and cover loosely with foil for the first 20 minutes. For extra insurance, mix 1 tbsp flour into the shredded cheese before sprinkling—it helps absorb moisture. If it’s already too oily, top with extra crispy onions to balance the texture.
Can I make this vegetarian or vegan?
For vegetarian, use dairy-free cheese and a vegan cream of mushroom soup (like Imagine brand). For vegan, swap the cheese for a nut-based alternative (like cashew cheese) and use a vegan butter in the sauce. The French fried onions can be vegan too—check labels for plant-based options. The texture will differ slightly, but the creamy, cheesy essence remains!