The Best Ina Garten Green Bean Casserole for Thanksgiving Recipe
Introduction
This green bean casserole inspired by Ina Garten is a fresh and flavorful twist on a Thanksgiving classic. Featuring tender green beans, a creamy mushroom sauce, and crispy French-fried onions, it’s sure to become a holiday favorite.

Ingredients
- 1 ½ pounds fresh green beans, trimmed
- 2 tablespoons unsalted butter
- 1 medium onion, diced
- 2 cloves garlic, minced
- 8 ounces mushrooms, sliced
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¼ teaspoon cayenne pepper (optional)
- 1 cup heavy cream
- 1 tablespoon Dijon mustard
- 1 tablespoon soy sauce
- 1 ½ cups French-fried onions
- ¼ cup grated Parmesan cheese (optional)
- Fresh parsley, for garnish
Instructions
- Step 1: Preheat oven to 375°F (190°C). Grease a 2-quart baking dish and set aside.
- Step 2: Bring a large pot of salted water to a boil. Add trimmed green beans and cook for 3–4 minutes until slightly tender but still crisp. Drain and plunge into ice water. Set aside.
- Step 3: In a large skillet, melt butter over medium heat. Add diced onion and cook for about 5 minutes until translucent.
- Step 4: Stir in minced garlic and cook for another minute until fragrant.
- Step 5: Add mushrooms, salt, black pepper, and optional cayenne. Cook 6–8 minutes until mushrooms are browned and moisture is released.
- Step 6: Stir in heavy cream, Dijon mustard, and soy sauce. Simmer 3–4 minutes to thicken slightly.
- Step 7: In a large bowl, combine blanched green beans and cream sauce. Toss until beans are well coated.
- Step 8: Pour mixture into prepared baking dish. Top with French-fried onions and sprinkle Parmesan cheese if using.
- Step 9: Bake for 25–30 minutes or until bubbly and golden brown.
- Step 10: Remove from oven, let cool slightly, and garnish with fresh parsley before serving.
Tips & Variations
- For extra crunch, add some chopped walnuts or pecans on top before baking.
- If you prefer a lighter version, substitute half-and-half for the heavy cream.
- Add a splash of white wine to the mushroom sauce for additional depth of flavor.
- Use gluten-free French-fried onions to make this casserole gluten-free.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven at 350°F (175°C) for about 10–15 minutes until warmed through to keep the topping crispy.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use canned green beans instead of fresh?
Fresh green beans provide the best texture and flavor, but if you use canned, be sure to drain and dry them well. You may want to skip the blanching step to avoid mushiness.
Can I prepare this casserole in advance?
Yes, you can prepare the casserole up to the baking step, cover it, and refrigerate overnight. Add the French-fried onions just before baking for best results.
PrintThe Best Ina Garten Green Bean Casserole for Thanksgiving Recipe
This Ina Garten Green Bean Casserole is a classic Thanksgiving side dish that combines fresh green beans with a creamy mushroom sauce, topped with crispy French-fried onions for a perfect balance of textures and flavors. It’s a delicious upgrade from the traditional canned version, providing a fresh, savory, and slightly tangy dish that’s sure to impress your holiday guests.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
Vegetables
- 1 ½ pounds fresh green beans, trimmed
- 1 medium onion, diced
- 2 cloves garlic, minced
- 8 ounces mushrooms, sliced
- Fresh parsley, for garnish
Dairy & Fats
- 2 tablespoons unsalted butter
- 1 cup heavy cream
- ¼ cup grated Parmesan cheese (optional)
Seasonings & Condiments
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¼ teaspoon cayenne pepper (optional)
- 1 tablespoon Dijon mustard
- 1 tablespoon soy sauce
Toppings
- 1 ½ cups French-fried onions
Instructions
- Preheat the Oven: Preheat your oven to 375°F (190°C) and grease a 2-quart baking dish to prepare it for the casserole.
- Blanch the Green Beans: Bring a large pot of salted water to a boil. Add the trimmed green beans and cook for 3–4 minutes until they are slightly tender but still crisp. Drain the beans and immediately plunge them into ice water to stop the cooking process. Set aside.
- Sauté Onions: In a large skillet, melt the butter over medium heat. Add the diced onion and cook for about 5 minutes until translucent and softened.
- Add Garlic: Stir in minced garlic and cook for another minute until fragrant, enhancing the flavor base.
- Cook Mushrooms: Add the sliced mushrooms, salt, black pepper, and optional cayenne pepper to the skillet. Cook for 6–8 minutes until the mushrooms are browned and have released their moisture.
- Make Cream Sauce: Stir in the heavy cream, Dijon mustard, and soy sauce into the mushroom mixture. Let it simmer for 3–4 minutes to thicken slightly, creating a flavorful sauce.
- Combine Beans and Sauce: In a large bowl, toss the blanched green beans with the cream sauce until the beans are well coated.
- Assemble Casserole: Pour the green bean and sauce mixture into the prepared baking dish. Top with French-fried onions and, if using, sprinkle grated Parmesan cheese evenly over the top.
- Bake: Place the casserole in the preheated oven and bake for 25–30 minutes until the casserole is bubbly and the topping is golden brown.
- Garnish and Serve: Remove the casserole from the oven, allow it to cool slightly, and garnish with fresh parsley. Serve warm as a delicious Thanksgiving side dish.
Notes
- Blanching the green beans and shocking them in ice water helps maintain their bright color and crisp texture.
- The cayenne pepper is optional but adds a subtle hint of heat that complements the creamy mushroom sauce.
- Parmesan cheese adds a nice savory depth and crispy texture when baked on top but can be omitted for a milder flavor.
- French-fried onions provide the classic crunchy topping that contrasts perfectly with the creamy casserole.
- Use fresh mushrooms for best flavor; cremini or white button mushrooms work well.
- This casserole can be made ahead and refrigerated before baking; just add extra baking time if baking from cold.
Keywords: Ina Garten, Green Bean Casserole, Thanksgiving side dish, creamy mushroom sauce, French-fried onions, holiday recipe

