As I stood by the stovetop, the aroma of sautéing mushrooms filled the air, transporting me to my grandmother’s cozy kitchen during the holidays. This Homemade Green Bean Casserole is not just another side dish—it’s a comforting hug on a plate. Crafted with a creamy homemade mushroom sauce and topped with crispy fried shallots, it’s the perfect way to elevate your meals. Not only is this recipe quick to whip up, but it also offers a delightful twist on a classic favorite that family and friends will rave about. Whether you’re looking to dazzle at a holiday gathering or crave a satisfying family dinner, this dish has you covered. Ready to discover the secret to the ultimate green bean casserole? Let’s dive in!

Why is This Green Bean Casserole a Must-Try?
Comforting, Homemade Goodness: This recipe leaves the store-bought versions behind, showcasing fresh ingredients and a scratch-made mushroom sauce that are simply unmatched.
Crispy, Crunchy Topping: Topped with golden fried shallots, it adds a delightful crunch, making every bite a joy.
Quick and Easy: Perfect for busy home chefs, this dish can be whipped up in no time, allowing you more precious moments with your loved ones.
Versatile Dish: Use it as a side for holiday meals or enjoy it as a hearty main dish. The options are endless!
Customizable Flavor: Feel free to tweak the recipe to fit your diet – swap in vegan cheese for a dairy-free option or add a spicy kick with red pepper flakes.
Elevate your dining experience effortlessly and impress your guests with this crowd-pleasing green bean casserole that everyone will love, and make sure to check out my Crack Breakfast Casserole for another delightful recipe to add to your collection!
Green Bean Casserole Ingredients
- For the Casserole
• Green Beans – Fresh is best for a vibrant crunch; canned green beans can be used if you’re pressed for time.
• Mushrooms – These are crucial for that rich, earthy flavor—choose cremini or button mushrooms based on your preference.
• Parmesan Cheese – Adds a nutty essence; for a dairy-free alternative, opt for vegan cheese.
• Fried Shallots – These deliver a spectacular crunch; consider making your own for freshness, or use store-bought for convenience.
• Flour – Your thickening agent; try gluten-free flour if necessary.
• Milk/Cream – For creamy deliciousness; nut milk works well for a dairy-free option.
• Butter – Infuses the sauce with richness; swap it with olive oil for a dairy-free choice.
• Chicken or Vegetable Broth – Enhances the overall flavor of the sauce; low-sodium options are great if you’re watching salt intake.
• Spices (salt, pepper, garlic powder) – Season to taste, and feel free to add herbs like thyme or spices like nutmeg for extra flavor.
This Green Bean Casserole is more than just a holiday centerpiece; it can transform your weeknight dinners into something special!
Step‑by‑Step Instructions for Homemade Green Bean Casserole
Step 1: Prepare the Green Beans
Begin by blanching your fresh green beans in a large pot of boiling water for 3-5 minutes until they are tender-crisp. This step helps retain their vibrant color and ensures a pleasant texture in your green bean casserole. Once they’re ready, transfer the beans immediately into an ice bath to halt the cooking process, then drain and set aside.
Step 2: Make the Creamy Mushroom Sauce
In a large skillet over medium heat, melt 3 tablespoons of butter. Add sliced mushrooms and sauté them for about 5-7 minutes until they turn a golden brown and release their moisture. Sprinkle in ¼ cup of flour, stirring continuously for a minute, then gradually whisk in 2 cups of milk and 1 cup of broth until the sauce thickens and becomes creamy, about 4-5 minutes.
Step 3: Combine Ingredients
Once the sauce has thickened, season it with salt, pepper, and garlic powder to taste. In a large mixing bowl, combine the blanched green beans with the creamy mushroom sauce, ensuring all the beans are well-coated. Then, transfer the mixture into a greased 9×13 inch baking dish, spreading it out evenly for consistent baking.
Step 4: Top with Parmesan and Fried Shallots
Sprinkle ½ cup of shredded Parmesan cheese evenly over the green bean casserole to add a nutty flavor. Then, add a generous layer of crispy fried shallots on top; this creates a delightful crunch that contrasts perfectly with the creamy filling. Make sure the toppings are spread evenly to ensure every bite is delicious.
Step 5: Bake
Preheat your oven to 375°F (190°C). Place the baking dish in the oven and bake for 20-30 minutes, or until the casserole is bubbly and the top is golden brown. Keep an eye on it to prevent the crispy shallots from burning while they achieve that perfect crunchy texture.
Step 6: Serve
After baking, remove the casserole from the oven and let it cool for 5-10 minutes. This resting time allows the flavors to meld beautifully and makes serving easier. Scoop out portions to share and enjoy the warmth of this homemade green bean casserole that brings comfort to any meal!

Make Ahead Options
These delicious Homemade Green Bean Casseroles are perfect for busy weeknights and holiday gatherings! You can prepare the casserole up to 24 hours in advance by assembling everything except the baking step. After you’ve mixed the blanched green beans with the creamy mushroom sauce and transferred it to your baking dish, cover it tightly with plastic wrap or aluminum foil and refrigerate. This way, you can maintain freshness without compromising flavor. When it’s time to serve, simply preheat your oven and bake the casserole at 375°F for 20-30 minutes until it’s heated through and the toppings are golden brown. Enjoy the convenience of having a comforting dish ready to go!
Expert Tips for the Best Green Bean Casserole
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Perfect Blanching: Ensure your green beans are blanched just right to keep them vibrant and crispy. Don’t overcook them; tender-crisp is the goal!
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Thickening Tips: When adding flour to your mushroom sauce, stir it constantly to prevent lumps. This ensures a smooth, creamy green bean casserole.
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Fried Shallot Technique: If making fried shallots from scratch, watch them closely while frying. They can go from golden brown to burned quickly, ruining that satisfying crunch!
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Make Ahead: If prepping in advance, assemble the casserole without baking and store it in the fridge for up to two days. Just pop it in the oven when you’re ready to wow your guests!
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Don’t Skip Seasoning: Taste as you go when adding spices to the creamy mushroom sauce. A pinch of nutmeg can take your green bean casserole to the next level!
What to Serve with Homemade Green Bean Casserole
As you prepare to gather around the table, complement your delightful casserole with these delicious sides and treats.
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Roasted Turkey: A classic pairing, juicy turkey elevates your meal with savory flavors that resonate beautifully with the creamy casserole.
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Honey Glazed Carrots: These sweet, tender carrots provide a pop of color and sweetness, balancing the rich mushroom sauce perfectly.
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Garlic Mashed Potatoes: Creamy and buttery, these mashed potatoes add a comforting texture that pairs exquisitely with the crisp green bean casserole.
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Cranberry Sauce: The refreshing tartness of cranberry sauce cuts through the richness of the casserole, providing a delightful contrast in flavors.
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Stuffing: A savory stuffing enhances holiday vibes and provides scrumptious bites that meld beautifully with your casserole’s textures.
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Warm Dinner Rolls: Soft and fluffy rolls are a must-have for soaking up that creamy sauce, making each bite even more satisfying.
For an ultimate indulgence, pair with a rich pumpkin pie for dessert. The warm spices and creamy texture will make this meal unforgettable!
Storage Tips for Green Bean Casserole
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Room Temperature: Allow the casserole to cool completely before leaving it out at room temperature for no more than 2 hours to prevent bacterial growth.
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Fridge: Store leftovers in an airtight container in the fridge for up to 3 days. The flavors meld beautifully, making for delicious second helpings!
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Freezer: For longer storage, freeze the unbaked casserole tightly wrapped for up to 2 months. Thaw in the refrigerator before baking to enjoy your homemade green bean casserole.
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Reheating: Reheat in the oven at 350°F for about 20-30 minutes, covered with foil to maintain moisture, then uncover in the last few minutes for that crispy topping.
Green Bean Casserole Variations & Substitutions
Get ready to personalize your green bean casserole experience with these delightful alternatives and tweaks!
- Dairy-Free: Substitute milk with almond or oat milk and replace Parmesan with vegan cheese for a creamy texture without dairy.
- Gluten-Free: Use any gluten-free flour blend in place of regular flour to thicken your mushroom sauce without compromising flavor.
- Spicy Kick: A dash of red pepper flakes or a splash of hot sauce will elevate your casserole’s flavor, making it a crowd favorite.
- Vegetable Swap: Swap green beans for asparagus or zucchini for a fresh, seasonal twist that can brighten up your dish.
- Heartier Option: Add cooked, shredded chicken or turkey to transform this side into a fulfilling main dish, perfect for any meal.
- Herb Infusion: Spice up your sauce with fresh herbs like thyme or rosemary for a fragrant lift that complements the earthiness of mushrooms.
- Nutty Flavor Boost: Toast some chopped almonds or pecans and sprinkle them on top for an added crunch and nutty flavor to your already delicious topping.
- Lemon Zest: A teaspoon of lemon zest added to the mushroom sauce before combining with the beans can bring a delightful brightness to every bite.
If you’re looking for another fantastic recipe to try after this one, be sure to check out my Crack Breakfast Casserole, which is another family favorite that your loved ones will enjoy!

Green Bean Casserole Recipe FAQs
What are the best green beans to use for this casserole?
Fresh green beans are ideal for a great texture and vibrant color, with tender-crisp results. If you’re pressed for time, using canned green beans is perfectly fine, but I recommend rinsing them to reduce sodium content.
How should I store leftover green bean casserole?
Allow the casserole to cool completely before transferring leftovers to an airtight container. It can be stored in the refrigerator for up to 3 days. Reheat gently in the oven at 350°F for about 20-30 minutes, covered with foil to lock in moisture.
Can I freeze green bean casserole?
Absolutely! To freeze, prepare the casserole without baking, cover tightly with foil or plastic wrap, and freeze for up to 2 months. When you’re ready to enjoy, thaw in the refrigerator overnight before baking at 375°F for 20-30 minutes.
How can I prevent the fried shallots from burning?
Great question! Keep an eye on the fried shallots while baking, especially towards the last 10 minutes. If they start to brown too quickly, you can cover the casserole loosely with foil to protect them while still allowing the casserole to heat through.
Is this green bean casserole suitable for a vegan diet?
Yes, definitely! You can easily make this dish dairy-free by using vegan cheese, nut milk instead of regular milk, and olive oil in place of butter. It’s a delicious way to cater to different dietary needs while keeping the flavor intact!
How long do I blanch the green beans?
Blanch the green beans for about 3-5 minutes until they are tender-crisp. This ensures they maintain their bright green color and delightful crunch in your green bean casserole. Afterward, quickly plunge them into an ice bath to stop the cooking process.

Creamy Green Bean Casserole with Homemade Crunchy Topping
Ingredients
Equipment
Method
- Begin by blanching your fresh green beans in a large pot of boiling water for 3-5 minutes until tender-crisp. Transfer to an ice bath, then drain and set aside.
- In a large skillet over medium heat, melt 3 tablespoons of butter. Add sliced mushrooms and sauté for 5-7 minutes until golden brown. Stir in ¼ cup of flour, then gradually whisk in 2 cups of milk and 1 cup of broth until thickened, about 4-5 minutes.
- Season the sauce with salt, pepper, and garlic powder to taste. Combine the blanched green beans with the creamy mushroom sauce in a large mixing bowl.
- Transfer the mixture to a greased 9x13 inch baking dish, spreading evenly. Sprinkle with ½ cup of shredded Parmesan cheese and a generous layer of fried shallots.
- Preheat oven to 375°F (190°C) and bake for 20-30 minutes or until bubbly and golden brown.
- Let cool for 5-10 minutes before serving.

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