Side Dishes
Betty Crocker's green bean casserole recipe delivers the crispy-topped comfort that's been a holiday staple for generations. The secret lies in that perfect golden-brown fried onion topping that contrasts beautifully with tender green beans and creamy mushroom sauce.
I've tested countless variations to perfect this classic, ensuring every bite delivers that nostalgic crunch and rich flavor combination.
This iconic side dish comes together in just one bowl, making it perfect for busy cooks who still want restaurant-quality results. The traditional method involves layering canned green beans, mushroom soup, and that legendary fried onion topping, then baking until bubbly and golden.
What sets this version apart is the precise balance of textures—crispy on top, creamy in the middle, and tender beans throughout.
By the time it emerges from the oven, you'll have a dish that smells like holiday dinners past and tastes like home. The aroma alone will have everyone gathering around the table, while the perfect texture combination makes each bite satisfying.
This is the kind of recipe that transforms ordinary meals into memorable gatherings, and it's easier to make than you might think.
Serve it as the star side dish for Thanksgiving or Christmas dinner, or enjoy it year-round as a comforting weeknight meal. The beauty of this classic is its versatility—traditional or with modern twists, it always delivers that nostalgic comfort we all crave.
Let's get started on recreating this timeless favorite in your own kitchen.
Ingredients for betty crocker green bean casserole
These classic ingredients transform into nostalgic holiday comfort in one bowl.
| Ingredient | Amount | Notes |
|---|---|---|
| Canned Green Beans 🥦 | 2 cups | Drained, not thawed frozen |
| Mushroom Soup (Cream of) 🍄 | 2 cups | Condensed, ready-to-use |
| Heavy Cream 🥛 | ½ cup | Full-fat for richness |
| Fried Onions (Store-Bought) 🧅 | 1 ½ cups | Classic Betty Crocker brand |
| Milk 🥛 | ½ cup | Whole milk preferred |
| Butter 🧈 | ¼ cup | Unsalted, melted |
| Garlic Powder 🧄 | 1 tsp | Freshly ground preferred |
| Onion Powder 🧅 | 1 tsp | For depth of flavor |
| Salt 🧂 | ½ tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground preferred |
| All-Purpose Flour 🌾 | 2 tbsp | For crispy topping |
| Parmesan Cheese 🧀 | ¼ cup | Freshly grated for flavor |
The fried onions are the star here—Betty Crocker's classic brand is my go-to, but any quality store-bought works. Look for the kind with that perfect golden crunch that shatters between your teeth. The canned green beans? Green Giant or Del Monte are my pantry staples—just drain them well. For the mushroom soup, Campbell's Condensed is the OG, but any good-quality brand will do. The secret to that creamy texture? Heavy cream and whole milk—none of that skim stuff here. And don't skip the freshly grated Parmesan—it adds that salty, umami punch that makes this dish sing.
No fried onions? Make your own—thinly slice onions, fry in butter until crispy, then drain on paper towels. Short on mushroom soup? Blend cooked mushrooms with cream and seasonings for a homemade version. The flour topping is non-negotiable for that crispy texture—don't substitute with anything else. Want extra richness? Add a splash of cream to the topping mix. And if you're feeling fancy, swap half the green beans for thinly sliced zucchini or yellow wax beans for a fresh twist. The key is balancing those creamy, crispy, and tender textures—don't overmix the topping or it'll get gummy.
This casserole reheats beautifully—350°F for 15-20 minutes until bubbly. Leftovers keep for 4-5 days in the fridge, but honestly, it's even better the next day. For holiday prep, assemble it ahead and refrigerate overnight—the flavors meld perfectly. Freeze portions for up to 3 months—just thaw in the fridge before reheating. Pro tip: Sprinkle extra Parmesan on top right before serving—that golden crust is worth the minute. Serve with a dollop of sour cream or extra fried onions on the side for maximum nostalgia.
Why You'll Love This Recipe
- Pantry to Plate: I dump in the canned beans, soup, and cream—no chopping, no stress. The only prep is opening cans and sprinkling those crispy fried onions on top.
- Creamy Crunch Magic: That creamy mushroom soup base meets the crunch of fried onions like it was meant to. It’s rich but not heavy, and the green beans soak up all the flavor.
- Holiday Table Star: I’ve served this at Thanksgiving, Christmas, and even casual Sunday dinners. It’s the kind of dish that makes people pause mid-bite and say, “This is amazing.”
- Leftovers That Don’t Suffer: Honestly, this tastes just as good the next day—if there’s any left. The creamy sauce thickens slightly, and the onions stay crispy, so it’s perfect for quick lunches.
Step-by-step instructions for Betty Crocker's green bean casserole recipe
This classic comfort dish comes together with minimal effort but maximum flavor—crispy, cheesy, and pure nostalgia in every bite.
Prepare the Green Bean Mixture
Drain the 2 cups canned green beans thoroughly and transfer them to a large mixing bowl. Add the 2 cups cream of mushroom soup, 0.5 cup heavy cream, 0.5 cup milk, and 0.25 cup melted butter. Stir everything together until the beans are evenly coated in the creamy sauce. This mixture should be smooth and well-combined, with no dry spots remaining.
Here's the thing—don't rush this step. The sauce needs to fully meld with the beans so every bite delivers that rich, velvety texture. Taste a spoonful now and adjust seasoning if needed, adding up to 0.25 tsp black pepper for extra depth. The beans should be fully submerged in the sauce, ready for the crispy topping we're about to create.
Create the Crispy Topping
In a separate bowl, combine the 1.5 cups fried onions, 2 tbsp all-purpose flour, 0.25 cup freshly grated parmesan cheese, 1 tsp garlic powder, 1 tsp onion powder, and the remaining 0.5 tsp salt. Use your hands to mix everything thoroughly—this ensures the flour coats the onions evenly for that perfect crispy texture. The mixture should look like a coarse, golden crumble with visible onion pieces throughout.
Don't skip the hand-mixing here. Using a spoon won't distribute the flour as evenly, and you'll miss out on that satisfying crunch. The key is to get the onions coated but not completely covered—you want to see those golden bits peeking through for maximum crispiness. This topping is what makes this casserole legendary, so take your time getting it right.
Assemble and Bake to Golden Perfection
Preheat your oven to 350°F. Transfer the green bean mixture to a greased 9x13-inch baking dish, spreading it evenly across the bottom. Here's where it gets fun—sprinkle the onion topping evenly over the top, pressing down gently but not packing it too tightly. You want that topping to crisp up beautifully, not sink into the casserole.
Bake uncovered for 30-35 minutes until the top is golden brown and bubbly, and the edges are crispy. The casserole is done when the center is hot and the topping has developed that irresistible crunch. If you're unsure, check at the 25-minute mark—ovens vary, and you don't want to overbake. The filling should be hot but not boiling when you take it out.
Rest and Serve with Confidence
Remove the casserole from the oven and let it rest for 10 minutes before serving. This resting period allows the filling to set slightly, making it easier to cut and serve. The topping will stay crispy during this time—don't worry about it softening. Use a spatula to loosen the edges if needed, then divide into serving dishes.
Here's the moment you've been waiting for: that perfect combination of creamy green beans topped with crispy, cheesy onions. Each bite delivers that nostalgic comfort food experience. Serve warm with crusty bread to soak up every last bit of that delicious sauce. And trust me, this casserole tastes even better the next day—if there's ever a leftovers scenario!
Pro Tips For Making Betty Crocker Green Bean Casserole
- Drain and Rinse Beans: Dump those canned green beans straight into the pot? Bad idea. Drain them first, then rinse under cold water for 10 seconds—it cuts the canned taste and keeps the sauce from turning gluey later. I learned this the hard way after serving a batch that tasted suspiciously like tin.
- Simmer, Don’t Boil: The sauce needs to thicken, not curdle. After mixing the soup, cream, and milk, keep the heat at a gentle simmer—low enough that tiny bubbles just break the surface. I used to crank it up, and the sauce would split like a bad soufflé. Patience here saves cleanup.
- Toast the Onions: Skip the straight-from-bag fried onions—they’ll just float like sad little rafts. Heat them in a dry skillet for 2–3 minutes until golden and crisp. The extra crunch makes all the difference, and they won’t turn soggy when mixed in. (Yes, even if you’re impatient like me.)
- Stir in the Beans Last: Add the drained beans to the sauce after it’s thickened and off the heat. Stirring them in too early turns the casserole into a mushy, watery mess. I was skeptical until I tried it—now it’s non-negotiable. The beans stay bright, and the texture stays perfect.
Dietary considerations for this betty crocker green bean casserole
Gluten-Free Adaptation
Swap the traditional flour in the crispy topping for 2 tbsp gluten-free all-purpose flour blend like Bob's Red Mill 1:1. The key is to use a blend that mimics the binding properties of regular flour—don't substitute with almond or coconut flour, as they alter the texture.
For extra crispiness, I add 1 tbsp cornstarch to the mix. The fried onions remain gluten-free, so no substitutions are needed there. 🌾
Dairy-Free Version
Replace the heavy cream and milk with 1 cup full-fat coconut milk (canned, not carton) for richness. Use dairy-free butter (like Earth Balance) and swap the Parmesan for nutritional yeast (2 tbsp) or vegan Parmesan (like Violife).
The flavor won't be identical, but it stays creamy and satisfying. For the topping, use dairy-free cheese shreds if needed, though I find the nutritional yeast adds enough umami.
Lower-Carb Options
Cut the carbs by using cauliflower florets instead of green beans (steam them first). Reduce the cream of mushroom soup to 1 cup and add 1 cup low-sodium chicken broth to maintain moisture.
For the topping, use 1 tbsp almond flour instead of regular flour—it adds crunch without the carb load. The result is still creamy but with half the carbs of the original.
Vegetarian-Friendly
This dish is already vegetarian, but you can enhance it with white beans (½ cup, drained) mixed into the green beans for extra protein. For a meaty texture, stir in 1 cup cooked lentils or crumbled tofu (pressed and seasoned).
The dish maintains its creamy, comforting profile while adding plant-based protein. I like using smoked paprika (½ tsp) to deepen the flavor when adding lentils.
Allergen-Friendly Notes
Always check labels on canned goods—some green beans or mushroom soups contain hidden soy or dairy. For soy allergies, use Campbell's soy-free cream of mushroom soup. For onion allergies, substitute the fried onions with crushed potato chips (like Lay's Classic) for crunch.
The flavor won't be identical, but it solves the allergy issue while keeping the texture contrast. For nut allergies, avoid almond flour substitutions and stick to certified gluten-free blends.
Keto Considerations
For a keto-friendly version, replace the green beans with 2 cups sliced zucchini (steamed first to remove excess water). Use ½ cup heavy cream and ½ cup sour cream instead of milk, and thicken with 2 tbsp xanthan gum (¼ tsp) for binding.
The topping should be 100% cheese (like shredded cheddar) mixed with 1 tbsp cream cheese for extra richness. This version keeps carbs under 5g net per serving.
Nutrition facts
Frequently asked questions
Can I make this casserole ahead of time?
Assemble the casserole in a baking dish, cover tightly with foil, and refrigerate for up to 24 hours before baking. For holiday prep, you can even refrigerate it for 2 days—just add 10-15 minutes to the baking time. The flavors develop beautifully overnight, making it even more delicious. For freezing, bake first, then cool completely before wrapping tightly in plastic wrap and aluminum foil. It keeps for 3 months in the freezer.
Why is my topping not crispy?
Crispy toppings depend on three things: proper flour coating, even baking, and not overmixing. Hand-mix the topping just until combined—don't press it down too hard when adding to the casserole. Bake at 350°F uncovered for 30-35 minutes, then broil for 2-3 minutes at the end for extra crunch. If it's still soft, the oven may not be hot enough or the topping was packed down too tightly during assembly.
Can I use fresh green beans instead of canned?
Yes, but you'll need to blanch them first. Trim 2 cups fresh green beans and boil for 3-4 minutes until tender-crisp, then plunge into ice water to stop cooking. Drain well and pat dry completely before mixing with the soup. Fresh beans add a brighter flavor but require this extra step—don't skip the drying or your topping will get soggy.
What's the best way to reheat leftovers?
Cover the casserole with foil and reheat at 350°F for 15-20 minutes until bubbly. For individual portions, microwave for 1-2 minutes on medium power, then broil for 2 minutes to restore crispiness. The key is gentle heat—microwaving too long makes the topping soggy. Leftovers actually taste better the next day as the flavors meld further.
Can I make this dish without fried onions?
For a quick substitute, use 1 cup crushed potato chips (like classic salted Lay's) mixed with 1 tbsp melted butter and 1 tsp garlic powder. For a homemade version, thinly slice onions, fry in butter until crispy, then drain on paper towels. If avoiding onions entirely, try crushed pork rinds for a crispy, cheesy alternative that still delivers that satisfying crunch.