I’m excited to share my green bean casserole with frozen green beans! It’s the perfect dish for your holiday table! This classic Thanksgiving favorite has been reinvented from the original Campbell’s recipe to be quicker and more convenient without compromising on flavor. Instead of traditional fried onions on top, I’ve swapped in crispy panko breadcrumbs and freshly grated Parmesan cheese for a delightful Italian twist that I absolutely love!

This easy green bean casserole isn’t just a side, it’s a celebration of flavor and convenience! Since frozen green beans are pre-blanched, you can skip that step and dive straight into the deliciousness. Simply toss them in frozen, and watch as they transform into a creamy, savory dish that everyone will love.

Perfect for busy holiday gatherings, this healthy green bean casserole saves you time while delivering incredible taste. Let’s make your holiday cooking a breeze and fill your table with joy and flavor with this amazing recipe!

Why You Will Love This Green Bean Casserole

Using frozen green beans is convenient and easy! There’s no washing, trimming, or blanching!
Frozen haricot verts are extra fine and tender, which gives this casserole the perfect texture.
The green beans pair nicely with the creamy, flavorful mushroom sauce.
It’s the ultimate green bean casserole for Thanksgiving and holiday gatherings!
This casserole is perfect for busy days and can be quickly prepared with minimal effort!

What Is Green Bean Casserole?

Green bean casserole is a classic comfort dish featuring tender green beans, a creamy sauce, and a crispy topping. It’s often served at Thanksgiving or holiday gatherings. With this recipe, we make it extra easy using frozen green beans. There’s no need for blanching! The green beans are combined with savory cream of mushroom soup and sautéed mushrooms for added flavor, then topped with a crunchy breadcrumb mixture for the perfect finish.

Ingredients Needed

Frozen Green Beans: This green bean casserole is made with frozen green beans! We love using frozen haricots verts, extra-fine French green beans, for their tender texture and delicate taste.
Olive Oil: Sauté the mushrooms and onions in olive oil.
Onion: Dice a white or sweet onion.
Mushrooms: Slice cremini mushrooms and then sauté them.
Italian Seasoning: Add incredible flavor to this casserole with Italian seasoning. The blend of herbs like oregano, basil, and thyme adds flavor.
Garlic Powder: Garlic powder enhances the flavor profile of this dish.
Salt and Pepper: Season with salt and pepper to enhance flavor.
Cream of Mushroom Soup: Use one, 10.5 ounce can of condensed cream of mushroom soup.
Milk: Use 1% milk or your milk of choice.
Soy Sauce: Use low-sodium soy sauce or tamari for a gluten-free alternative.
Panko Breadcrumbs: For the crispy green bean casserole topping, use Panko breadcrumbs.
Parmesan: Freshly grated Parmesan cheese is part of the casserole topping.
Onion Powder: A touch of onion powder adds flavor to the topping and complements the other seasonings.
Cooking Spray: Lightly spray the casserole with cooking spray or olive oil after adding the topping to help it become crispy and golden brown as it bakes.

How To Make Green Bean Casserole With Frozen Green Beans

Step 1: Cut the ends off the cremini mushrooms. Then, evenly slice them. Also, dice the onion.

Step 2: Add the olive oil to a skillet over medium heat on the stove. Then, add the sliced diced onion to the skillet and sauté. After that, add the sliced mushrooms, Italian seasoning, garlic powder, salt, and pepper to the skillet.

From there, sauté until the mushrooms are softened and cooked. After that, remove the skillet from the heat.

Step 3: In a large bowl, combine the cream of mushroom soup, milk, soy sauce, and sautéed ingredients.

Next, add the frozen green beans and thoroughly mix until everything is well combined.

Step 4: Lightly spray a casserole dish with olive oil. After that, pour the green bean mixture into the dish.

Step 5: Cover the casserole dish with foil and bake it at 350°F for 30-35 minutes.

Step 6: In a separate bowl, mix the panko breadcrumbs, Parmesan cheese, Italian seasoning, garlic powder, onion powder, salt, and pepper.

Step 7: Once done baking, remove the foil from the baking dish. Next, evenly sprinkle the breadcrumb mixture over the casserole. Then, lightly spray the top with olive oil to help it crisp up.

Breadcrumb topping on green bean casserole

Step 8: Bake the casserole for an additional 15-20 minutes, or until the topping is golden brown. Once done, let the casserole slightly cool before serving.

Serving Suggestions

This green bean casserole pairs well with many dishes! It’s a versatile side dish and makes a wonderful addition to a Thanksgiving spread or holiday meal. Here are some ways to serve this casserole.

Roasted Turkey: For a classic holiday pairing, serve it alongside roasted turkey.
Mashed Potatoes: The creamy, buttery texture of mashed potatoes pairs perfectly with this green bean casserole.
Stuffing: Green bean casserole and stuffing are a delicious and comforting duo!
Cranberry Sauce: The tartness of cranberry sauce is a nice contrast to the richness of the casserole.
Sweet Potatoes: This casserole pairs nicely with a side of oven-roasted sweet potatoes or mashed sweet potatoes. You can even serve it alongside our sweet potato casserole!
Cornbread: The slightly sweet flavor of cornbread complements this savory green bean casserole!

Green Bean Variations

I love using frozen haricots verts in this casserole because they are extra fine and tender, adding a delightful texture and fresh flavor to the dish. However, you can use other types of frozen green beans in place of haricots verts. Standard frozen cut or whole frozen green beans work well in this casserole, so feel free to use what you have on hand!

If you prefer to use fresh green beans, simply trim the ends and cut them into bite-sized pieces. Blanch them in boiling water for about 3-4 minutes until they are bright green and slightly tender, then immediately transfer them to an ice bath to stop the cooking. Drain well before adding them to the casserole mixture.

Or, you can use canned green beans for this recipe. Just make sure to drain and rinse them thoroughly to remove excess sodium before adding them to the casserole. Since canned green beans are already cooked, you can skip the baking time to just warm everything through for about 15-20 minutes.

Expert Tips

Grated Parmesan Cheese: If you don’t want to freshly grate the Parmesan, you can use store-bought pre-grated Parmesan instead. Or, substitute it with grated Romano cheese for a similar flavor.
Breadcrumbs To Use: If you don’t have panko, regular breadcrumbs will work. Just note they may be a bit less crispy. For added crunch, toast them lightly in a skillet. Also, if you’re using seasoned breadcrumbs, reduce or skip the added Italian seasoning, garlic powder, onion powder, salt, and pepper in the topping mixture to avoid over-seasoning. Or, you can replace the breadcrumbs with crispy French-fried onions for a traditional topping.
Slice The Mushrooms: Slice the mushrooms as evenly as possible to ensure they cook at the same rate, resulting in a uniform texture throughout the casserole.
Double The Recipe: You can easily double this green bean casserole recipe if serving a larger crowd.

Storage Instructions

To Store: Store leftovers in an airtight container in the refrigerator for 3-4 days.

To Reheat: You can reheat this green bean casserole in the oven at 350°F for about 20-30 minutes, or until warm. Cover the dish with foil before reheating to prevent the casserole from drying out. For a crispy topping, remove the foil during the last 10 minutes of baking.

Frequently Asked Questions

Can You Freeze Green Bean Casserole?

Yes, you can freeze this green bean casserole after baking it. Make sure it’s completely cooled before transferring it to a freezer-safe airtight container. Then, store it in the freezer for up to 2-3 months. When ready to serve, bake it from frozen or thaw it overnight and reheat it in the oven.

Do I Have To Thaw The Frozen Green Beans?

No, don’t thaw the frozen green beans before using them in your green bean casserole. Simply take the frozen beans straight from the freezer and mix them with the cream of mushroom soup mixture. The beans will cook as the casserole bakes in the oven, and the moisture from the frozen beans will help create a creamy texture in the dish.

Can I Make This Green Bean Casserole Gluten-Free?

Yes, you can easily make this green bean casserole gluten-free! Simply swap the soy sauce for tamari. Also, use your favorite gluten-free breadcrumbs in place of the panko.

More Recipes To Try Next!

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