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Gluten-Free Green Bean Casserole

Okay, imagine this: holiday dinners filled with laughter, that comforting smell of warm mushrooms and crispy onions wafting through the house, and *finally* that classic green bean casserole making its shining debut on the table. But wait—no gluten? No problem! I’ve been tinkering in my kitchen to create a gluten-free version that’s just as creamy and nostalgic without sacrificing any flavor or crunch. This casserole is packed with tender green beans coated in a luscious sauce, topped with golden, crispy onions that make you want to dive in right away. Trust me, whether you’re gluten-free or just craving a comforting side dish, this recipe will be your new favorite holiday hero. Let’s make some magic happen!

Quick Facts

Yield: Serves 6
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes

Ingredients

For the Main Dish:

1½ pounds fresh green beans, trimmed and cut into 2-inch pieces
2 tablespoons olive oil or butter
8 ounces cremini or white mushrooms, sliced
3 cloves garlic, minced
2 tablespoons gluten-free all-purpose flour
1 cup chicken or vegetable broth (check gluten-free status)
1 cup full-fat coconut milk or heavy cream
1 teaspoon soy sauce or tamari (gluten-free)
Salt and freshly ground black pepper, to taste

For the Topping:

1½ cups gluten-free crispy fried onions (store-bought or homemade)

How I Make It

Step 1:

Start by blanching your green beans. Bring a large pot of salted water to a boil, toss in the green beans, and cook for about 4 minutes until bright green and just tender. Drain them and immediately plunge them into ice water to stop the cooking—this keeps them crisp and vibrant.

Step 2:

In a large skillet, heat the olive oil or butter over medium heat. Add the sliced mushrooms and sauté until beautifully browned and their liquid has mostly evaporated—about 7 minutes. Stir in the minced garlic and cook for another minute until fragrant.

Step 3:

Sprinkle the gluten-free flour over the mushroom mixture and stir well to coat everything. This will help thicken your sauce. Slowly pour in the broth while stirring constantly to avoid lumps. Follow up with the coconut milk or cream, then add the soy sauce. Let it simmer gently for about 5 minutes until the sauce thickens, stirring occasionally.

Step 4:

Season the sauce with salt and pepper to your taste. Then fold in the blanched green beans, making sure they’re fully coated with that creamy mushroom goodness.

Step 5:

Transfer the mixture to a greased 9×13-inch baking dish. Evenly sprinkle the gluten-free crispy onions on top. This layer is key—it brings that perfect crunch and golden color that everyone expects.

Step 6:

Bake in a preheated 350°F oven for 20 minutes until the topping is bubbling and beautifully crisp. Let it rest for a few minutes before serving—you’ll want to scoop up every last bit of that creamy, crunchy delight.

Variations & Tips

For extra depth, stir in ½ teaspoon dried thyme or fresh herbs like rosemary.
Use frozen green beans if fresh aren’t available—just skip blanching and thaw before using.
Make your own gluten-free crispy onions by tossing thinly sliced onions with gluten-free flour and baking until crisp.
Swap coconut milk for heavy cream or half-and-half for a richer sauce.
Add cooked, diced bacon for a smoky twist.
For a nutty touch, sprinkle toasted almond slivers on top along with the onions.

How I Like to Serve It

This green bean casserole is a showstopper at Thanksgiving or any cozy family gathering. It pairs wonderfully with roasted turkey, mashed potatoes, and my favorite gluten-free dinner rolls to soak up every bit of sauce. But honestly, it’s so good, I wouldn’t hesitate to serve it as a midweek comfort side on its own!

Notes

Store leftovers covered in the fridge for up to 3 days; reheat gently in the oven to keep the topping crispy.
If you want to save time, prep the sauce in advance and assemble right before baking.

Closing: This gluten-free green bean casserole brings warmth, crunch, and all the cozy flavors you love without any gluten worries—making it a dependable, delicious favorite every time.

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