As the holiday season approaches, a profound sense of nostalgia wafts through the air, often sparked by dishes that bring us together around the table. My Homemade Green Bean Casserole with Creamy Mushroom Sauce is the perfect blend of warmth and comfort, showcasing tender green beans and a rich, scratch-made mushroom sauce that will redefine your expectations of this classic side dish. Not only is this recipe made from scratch, elevating it above the usual fare, but it also comes together quickly, making it an effortless crowd-pleaser for any holiday gathering. Trust me, once this dish graces your table, the aroma alone will draw everyone in. Are you ready to transform your holiday meals with a touch of love and deliciousness?

Why is Homemade Green Bean Casserole Special?
Unforgettable Comfort: This Homemade Green Bean Casserole is the ultimate comfort food, delivering rich, creamy goodness to your holiday table.
Made from Scratch: The scratch-made mushroom sauce sets this casserole apart from store-bought versions, giving you that homemade feel and flavor.
Quick & Easy: With simple ingredients and straightforward steps, you’ll have this delightful dish ready to go in no time—perfect for busy holiday gatherings!
Crowd-Pleaser: Its versatile flavor appeals to everyone, making it an irresistible accompaniment to any meal, from Thanksgiving turkey to festive ham.
Healthy Twist: Packed with vitamins from fresh green beans, this dish proves that comfort food can be nutritious too. Consider pairing it with other delicious meals like my Chicken Spaghetti Casserole or a hearty Chicken Cauliflower Casserole for a complete feast!
Homemade Green Bean Casserole Ingredients
For the Casserole
- Green Beans – Fresh and crisp, they provide the essential texture; in a hurry? Frozen green beans work too.
- Parmesan Cheese – Adds a rich, nutty flavor to the dish; swap it with nutritional yeast for a dairy-free version.
- Shallots – Perfect for topping, their sweet crunch elevates the dish; onions make a fine substitute in a pinch.
- Mushrooms – The heart of the creamy sauce; fresh are best, but drained canned mushrooms can also shine here.
- Butter – Infuses richness into the sauce; olive oil is a great dairy-free alternative.
- Flour – Acts as a thickener for the sauce; gluten-free flour can easily replace it for those with dietary restrictions.
- Milk – Creates a creamy base; almond or coconut milk can be used for dairy-free options.
- Vegetable Broth – Enriches the flavor; chicken broth is a handy substitution if vegetarian isn’t a concern.
- Garlic Powder, Onion Powder, and Other Seasonings – These simple ingredients enhance the overall flavor; adjust according to your taste.
For the Topping
- Fried Shallots – Adds a delightful crunch; consider making your own for a fresher taste!
This Homemade Green Bean Casserole is more than just a dish—it’s a comforting tradition that will warm hearts and home alike!
Step‑by‑Step Instructions for Homemade Green Bean Casserole
Step 1: Prepare the Fried Shallots
Begin by slicing the shallots thinly and heating about half an inch of oil in a large skillet over medium heat. Once the oil is shimmering, carefully add the shallots in batches, frying them for about 3-5 minutes until they turn golden brown and crispy. Use a slotted spoon to transfer them to a paper towel-lined plate, allowing them to drain and become even crispier while you prepare the rest of the casserole.
Step 2: Blanch the Green Beans
In a large pot, bring salted water to a rolling boil and add the green beans, letting them cook for 3-4 minutes until they’re tender-crisp. Once softened, quickly drain and plunge them into a bowl of ice water for about 5 minutes to stop the cooking process and preserve their vibrant green color. Drain the beans again and set them aside to dry while you make the creamy sauce.
Step 3: Make the Creamy Sauce
In a medium saucepan, melt 4 tablespoons of butter over medium heat. Whisk in 1/4 cup of flour for about 2 minutes, creating a roux, and gradually pour in 1 cup of milk and 1 cup of vegetable broth while continuously whisking. Cook for about 5-7 minutes until the mixture thickens and is bubbling. Mix in sautéed mushrooms, garlic powder, onion powder, and other seasonings to elevate the flavor of your Homemade Green Bean Casserole.
Step 4: Combine the Ingredients
In a large mixing bowl, gently fold the blanched green beans into the creamy mushroom sauce, ensuring every green bean is well-coated. Add half of the grated parmesan cheese into the mixture and stir until blended. This step is crucial for evenly distributing the creamy goodness throughout your Homemade Green Bean Casserole, adding depth and flavor.
Step 5: Assemble the Casserole
Pour the mixture into a greased baking dish, smoothing it out evenly. Sprinkle the remaining parmesan cheese over the top, creating a cheesy crust that will melt and crisp up beautifully in the oven. Then, layer the crispy fried shallots on top to add texture and flavor. This thoughtful assembly ensures a delightful contrast between the creamy center and crunchy topping.
Step 6: Bake the Casserole
Preheat your oven to 375°F (190°C) and place the assembled casserole in the oven. Bake for about 20 minutes until the mixture is bubbly and heated through. Then, remove the cover (if using) and bake for an additional 7-10 minutes, allowing the top to become golden brown and crispy. The enticing aroma of your Homemade Green Bean Casserole will fill your kitchen, promising a delightful addition to your table.

How to Store and Freeze Homemade Green Bean Casserole
Fridge: Store leftovers in an airtight container for up to 3 days to keep the casserole fresh. Reheat in the oven for the best texture.
Freezer: Freeze unbaked casserole for up to 2 months. Wrap tightly in plastic wrap and foil; when ready, bake from frozen, adding extra time.
Reheating: To reheat, place in a preheated oven at 350°F (175°C) for about 20–25 minutes until heated through and the top is crispy again.
Make-Ahead: This Homemade Green Bean Casserole can be prepared one day in advance. Cover tightly and refrigerate until you’re ready to bake.
Make Ahead Options
These Homemade Green Bean Casserole are perfect for busy cooks who want to save time during the holidays! You can prepare the creamy mushroom sauce and blanch the green beans up to 24 hours in advance. Simply store them separately in airtight containers in the refrigerator to maintain freshness and prevent the beans from becoming soggy. The assembled casserole can also be covered and refrigerated for up to 2 days before baking. When ready to serve, sprinkle the parmesan cheese and fried shallots on top, then bake in a preheated oven at 375°F for about 25-30 minutes until bubbly and golden. This way, you can enjoy a comforting, homemade dish with minimal effort!
What to Serve with Homemade Green Bean Casserole?
As you gather around the table, let’s explore the perfect accompaniments to enhance your holiday feast.
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Roast Turkey: A classic pairing that enhances the nostalgic atmosphere; the savory flavors complement the creamy casserole beautifully.
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Garlic Mashed Potatoes: Creamy and buttery, these potatoes provide a comforting contrast to the crisp green beans. A scoop of gravy over both will elevate the experience.
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Honey-Glazed Carrots: Their natural sweetness and tender texture offer a delightful balance against the richness of the casserole—an aromatic touch to your plate.
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Cranberry Sauce: The tartness of cranberry sauce adds an essential zing, cutting through the creamy richness of your green bean casserole.
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Stuffing: Whether savory or sweet, this beloved side dish brings heartiness to your meal. The variety of tastes and textures makes each bite exciting.
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Chess Pie: For dessert, this Southern classic’s sweet, buttery flavor rounds out your meal, ensuring that guests leave with smiles and full bellies.
Imagine a table filled with all these comforting dishes, each one inviting you to indulge and savor the warmth of the season!
Expert Tips for Homemade Green Bean Casserole
• Blanching Matters: Ensure you blanch the green beans briefly, preserving their vibrant color and crispness. Skipping this will result in soggy beans.
• Crispy Shallots: Watch the shallots closely while frying to prevent burning; they can change from perfectly crispy to charred in seconds!
• Thickening Trick: Make sure to whisk your roux thoroughly when adding milk and broth; lumps in your creamy sauce can detract from the smooth texture of your Homemade Green Bean Casserole.
• Cheese Substitution: If you’re looking for a dairy-free option, use nutritional yeast instead of parmesan. It lends a cheesy flavor without the dairy.
• Storage Tips: This casserole can be made ahead of time! Prepare it a day in advance, cover well, and refrigerate until you’re ready to bake.
Homemade Green Bean Casserole Variations
Dive into the world of flavor and let your creativity shine with these delightful variations!
- Veggie Swap: Substitute green beans with asparagus or broccoli for a different veggie twist. Each brings its unique flavor and texture to the table!
- Dairy-Free Delight: Use nutritional yeast in place of parmesan cheese for a delicious dairy-free adaptation. Your taste buds won’t miss the dairy at all!
- Gluten-Free Goodness: Simply swap regular flour for gluten-free flour in the creamy sauce. This ensures everyone at the table can indulge without a worry.
- Added Protein: For a heartier dish, incorporate cooked chicken or turkey into the casserole mix. Not only does it add depth, but it also transforms this side into a satisfying main dish.
- Extra Zing: Spice things up by adding a sprinkle of cayenne pepper or red pepper flakes for a kick. This subtle heat will balance well with the creamy sauce.
- Herb Infusion: Mix in some fresh herbs like thyme or rosemary into your creamy sauce for a fragrant herbal note. It elevates your casserole, making it feel restaurant-worthy.
- Mushroom Medley: Try using a mix of different mushrooms like shiitake or cremini in the sauce for an earthy, rich flavor. It’s a great way to experiment with taste!
- Nutty Crunch: Consider topping your casserole with panko breadcrumbs mixed with chopped nuts instead of fried shallots for a unique crispy texture. This variation adds an extra crunch and lots of flavor.
Ready to explore these creative twists? Each variation enhances the comforting essence of your Homemade Green Bean Casserole, allowing it to shine on every table! And if you’re in search of additional side delights, consider pairing this dish with my Chicken Spaghetti Casserole or even a Carb Chicken Casserole for an unforgettable feast!

Homemade Green Bean Casserole Recipe FAQs
How do I choose the best green beans?
Absolutely! Look for green beans that are bright green, firm, and crisp without any dark spots or blemishes. The ends should snap easily when bent, indicating freshness. If you’re ever in a rush, don’t hesitate to grab frozen green beans; they can be a fantastic substitute!
How should I store leftover Homemade Green Bean Casserole?
For sure! Store any leftovers in an airtight container in the refrigerator for up to 3 days. When you’re ready to enjoy it again, I recommend reheating in the oven at 350°F (175°C) for about 20-25 minutes to achieve that deliciously crispy top once more.
Can I freeze Homemade Green Bean Casserole?
Yes! You can freeze the unbaked casserole for up to 2 months. Wrap it tightly with plastic wrap and then cover it with aluminum foil to prevent freezer burn. When you’re ready to cook it, take it out, remove the wrapping, and bake directly from frozen, increasing the baking time by 10-15 minutes until it’s bubbly and warmed through.
What if my casserole is too watery?
Very good question! If you find your casserole is too watery, it might be due to excess moisture from the green beans or mushrooms. To fix this, next time, try sautéing the mushrooms first to release their moisture before adding them to the sauce. If you’ve already baked it, you can try out a quick fix by removing some of the excess liquid from the top with a spoon or by baking it a little longer uncovered to allow for evaporation.
Is there a way to make this recipe vegan?
Of course! To make this Homemade Green Bean Casserole vegan, simply substitute the butter with olive oil, use almond or coconut milk instead of dairy milk, and swap the parmesan cheese for nutritional yeast. This way, you can still enjoy that delightful flavor without the dairy!
Can I prepare the casserole ahead of time?
Absolutely! You can prepare your Homemade Green Bean Casserole a day in advance. Just assemble it as directed, cover tightly with foil, and refrigerate. When it’s time to bake, you can pop it straight into the preheated oven. This is a great time-saver during those busy holiday gatherings!

Irresistibly Creamy Homemade Green Bean Casserole Delight
Ingredients
Equipment
Method
- Prepare the Fried Shallots: Slice shallots thinly and heat oil in a skillet. Fry shallots until golden brown, then drain on paper towel.
- Blanch the Green Beans: Boil salted water, add green beans for 3-4 minutes, then plunge into ice water.
- Make the Creamy Sauce: Melt butter, whisk in flour, then gradually add milk and broth. Cook until thickened, then add sautéed mushrooms and seasonings.
- Combine the Ingredients: Fold blanched green beans into sauce and mix in half the parmesan cheese.
- Assemble the Casserole: Pour mixture into a greased baking dish, top with remaining parmesan and fried shallots.
- Bake the Casserole: Preheat oven to 375°F (190°C) and bake for about 20 minutes, then an additional 7-10 minutes until golden brown.

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