Gluten-Free Green Bean Casserole (2024)

Why You’ll Love this Recipe

• Made with fresh ingredients
• Creamy, savory, and crispy
• Homemade cream sauce
• Extra crispy topping
• Perfect for Thanksgiving dinner

Ingredients You’ll Need

For the Green Beans Mixture

Here’s what you’ll need to make this classic Thanksgiving dish:

• Green beans: Fresh green beans are essential for this classic green bean casserole! You can save time by buying washed and trimmed green beans. (I like the ones sold at Trader Joe’s.) Canned green beans do NOT compare to fresh!
• Shallots: Shallots are a milder, sweeter version of onions that works great for this green bean casserole recipe.
• Mushrooms: I like to use Baby Bella mushrooms or cremini mushrooms. Any brown mushrooms will work!
• Gluten-free flour: Be sure to use gluten-free flour for thickening the sauce — it’s what makes this dish gluten-free! I like to use a high-quality 1:1 gluten-free baking flour.This is my favorite brand.
• Chicken stock: I like to use low-sodium chicken stock or chicken broth for this recipe, since I add salt and other seasonings as well.

How to Make Gluten-Free Green Bean Casserole

• Preheat the oven to 400F. Lightly grease a 9×13 baking dish with cooking spray.

• Mix together the ingredients for the topping. Set aside.
• Place the green beans in a large microwave safe bowl and along with ½ cup water and cover with plastic wrap. Microwave on high for 6-8 minutes until slightly tender. (They will continue to cook in the oven.)

• In a large skillet over medium-high heat, melt the butter. Add the shallots and chopped mushrooms and cook for 7-10 minutes until the mushrooms have released their liquid and started to soften.
• Add the garlic, salt, pepper and thyme and cook for another minute.

• Sprinkle in the gluten-free flour and cook for another 2 minutes, stirring constantly.
• While whisking, slowly pour in the chicken stock. Whisk until the flour is smoothly incorporated.

• Pour in the milk and cream and bring to a simmer. Simmer for about 5 minutes, until thickened. Season to taste with salt and pepper.

• Drain the steamed green beans and pour into the prepared baking dish. Pour the sauce over the green beans and mix to combine.

• Bake for the green bean mixture for 20-25 minutes, until the green beans are mostly tender. Remove from the oven and sprinkle over the topping. Bake for another 5-10 minutes or until bubbly and golden brown.
• Let cool for 10 minutes before serving. Enjoy!

You also might like thisthanksgiving green saladorarugula pear goat cheese salad.

Storage/Make-Ahead Instructions

To make ahead: Make the green bean sauce and microwave the green beans, then store and set aside until ready to make. Reheat the sauce for a few minute in the microwave, then continue following the recipe to assemble and bake the casserole.

To store: Store leftover green bean casserole in an airtight container in the fridge for up to five days.

Expert Tips & Tricks

• Make it dairy-free: You can make this recipe dairy-free by using vegan butter, coconut milk, and unsweetened almond milk. You could also make the recipe vegan by using vegetable stock instead of chicken stock.
• Make your own fried onions: Want to take the recipe up another notch? Make your own fried onions by coating onions in gluten-free flour, then frying in oil.
• Buy gluten-free toppings: Don’t forget to buy gluten-free Panko and gluten-free fried onions, too!