Green bean casserole is a classic dish often served during holidays like Thanksgiving. This Vegan Green Bean Casserole version is just as comforting, savory, and creamy as the traditional one but without any animal products. Made with fresh green beans, a rich vegan mushroom gravy, and crispy onions on top, this casserole is sure to be a crowd-pleaser, whether you’re serving it for a festive meal or as a weeknight side dish. Plus, it’s easy to make, wholesome, and fully plant-based!

Table of Contents
Why You’ll Love This Vegan Green Bean Casserole
This Vegan Green Bean Casserole is not only a healthier alternative to the classic version but is also incredibly easy to prepare. It is made with fresh ingredients like green beans, mushrooms, and onions, and the creamy sauce is entirely dairy-free. It’s a great side dish for any family dinner, holiday meal, or potluck gathering. You’ll love how simple it is to make and how it satisfies every guest at the table.
Ingredients
Here’s a breakdown of what you’ll need for this Vegan Green Bean Casserole:
- Green Beans: A rich source of fiber and antioxidants, green beans add a crunchy texture and fresh flavor to the casserole.
- Mushrooms: These provide an earthy and savory taste that makes the sauce rich and creamy, replicating the traditional casserole’s creaminess.
- Onions: Adds a hint of sweetness and depth to the dish, and crispy onions on top make it extra delicious.
- Garlic: This enhances the flavors, giving the casserole a savory, aromatic base.
- Coconut Milk or Almond Milk: These non-dairy milks make the sauce smooth and creamy without the need for any animal products.
- Vegetable Broth: Provides the savory base for the sauce, enhancing the flavor without overpowering it.
- Flour: Used to thicken the sauce, ensuring a creamy consistency without using dairy.
- Nutritional Yeast: Adds a cheesy, umami flavor that’s perfect for vegan casseroles.
- Soy Sauce: Offers a touch of saltiness and umami flavor to complement the mushrooms and vegetables.
Alternative Ingredient Suggestions
If you’re missing some ingredients or need to make substitutions, here are a few ideas:
- Coconut Milk: If you’re not a fan of coconut milk, you can substitute it with other plant-based milks like oat or cashew milk.
- Crispy Onions: You can make your own crispy onions by baking thinly sliced onions with flour or buy store-bought vegan-friendly fried onions for a time-saver.
- Nutritional Yeast: If you don’t have nutritional yeast, a tablespoon of tahini can add a creamy, nutty flavor to the casserole.
Step-by-Step Instructions
- Prepare the Green Beans: Start by blanching the green beans in boiling water for 3-4 minutes, then transfer them to ice water to halt the cooking process and preserve their vibrant green color.
- Cook the Mushrooms: In a large skillet, sauté the sliced mushrooms with a bit of olive oil over medium heat. Cook for about 5-7 minutes until they release their moisture and become tender.
- Make the Vegan Sauce: In the same skillet, add minced garlic and cook for another minute. Stir in the flour and cook for 2 minutes, then add vegetable broth and coconut milk. Whisk until smooth, then add soy sauce and nutritional yeast. Let the sauce simmer for 5 minutes to thicken.
- Combine the Beans and Sauce: Add the blanched green beans to the mushroom sauce and stir to combine, ensuring the beans are fully coated with the creamy mixture.
- Transfer to a Baking Dish: Pour the green bean and sauce mixture into a greased 9×13-inch baking dish, spreading it out evenly.
- Top with Crispy Onions: Sprinkle the crispy onions generously over the top of the casserole.
- Bake: Place the casserole in a preheated oven at 350°F (175°C) and bake for 20-25 minutes, or until the top is golden brown and bubbly.

Tips & Tricks
- Avoid Overcooking the Green Beans: Blanch the green beans for no more than 4 minutes to ensure they remain crisp-tender after baking.
- Crispy Onion Alternatives: If you can’t find crispy fried onions, you can bake thinly sliced onions at 375°F (190°C) for 20-30 minutes, flipping halfway through for a homemade alternative.
- Make-Ahead Option: You can prepare this casserole up to a day ahead and store it in the refrigerator. Simply bake it right before serving.
- Adjust Consistency: If the sauce is too thick, add a bit more vegetable broth to reach your desired consistency.
Pairing Ideas and Variations
This Vegan Green Bean Casserole pairs wonderfully with a variety of dishes. Serve it alongside mashed potatoes, vegan stuffing, or a fresh salad for a complete meal. For a spicier version, consider adding a pinch of red pepper flakes or a dash of hot sauce to the sauce mixture. If you’re planning ahead, this casserole can also be made in individual portions for easy serving at a buffet-style meal.
Health Benefits of Vegan Green Bean Casserole
Green beans are a nutrient-packed vegetable that offers numerous health benefits. Rich in fiber, vitamins, and antioxidants, they support digestive health, boost immunity, and contribute to overall well-being. This casserole is also free from dairy, making it an excellent option for those following a plant-based or lactose-free diet.
With its creamy texture, savory flavor, and satisfying crunch, this Vegan Green Bean Casserole is the perfect dish for any occasion. It’s a delicious, plant-based alternative to the traditional casserole, offering a comforting taste without compromising on flavor or texture. Whether you’re celebrating a holiday or enjoying a family dinner, this casserole is sure to impress your guests.
Conclusion
This Vegan Green Bean Casserole is a must-try recipe for anyone seeking a healthier, plant-based alternative to the traditional dish. With its rich, creamy mushroom sauce and crispy onion topping, it perfectly captures the essence of the original while offering a cruelty-free twist. Whether you’re preparing it for Thanksgiving, a family dinner, or a potluck, this casserole is guaranteed to be a crowd favorite. It’s simple to make, full of flavor, and customizable to suit various dietary needs. Enjoy this delightful dish as a nourishing addition to your next meal!
Frequently Asked Questions (FAQ)
Can I make this Vegan Green Bean Casserole ahead of time?
Yes! You can prepare the casserole a day or two in advance. Simply follow the recipe up to the point of baking, cover it tightly, and store it in the refrigerator. When you’re ready to serve, bake it in the oven as directed until it’s hot and bubbly.
Can I use frozen green beans instead of fresh?
While fresh green beans provide the best texture and flavor, you can use frozen green beans in this recipe. Just make sure to thaw and drain them thoroughly before adding them to the casserole to avoid excess water.
How do I store leftovers of this casserole?
Leftover Vegan Green Bean Casserole can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply warm it in the oven at 350°F (175°C) until heated through.
More Relevant Recipes
Print
Vegan Green Bean Casserole
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
- Diet: Vegan
Description
This Vegan Green Bean Casserole is a delicious plant-based twist on the traditional holiday side dish. It features fresh green beans, a creamy mushroom sauce, and a crispy onion topping that everyone will love. Perfect for Thanksgiving, family dinners, or any time you crave a savory, comfort-filled dish.
Ingredients
- 1 lb fresh green beans, trimmed and blanched
- 2 cups mushrooms, sliced
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 1 1/2 cups coconut milk or almond milk
- 1/2 cup vegetable broth
- 2 tablespoons all-purpose flour
- 1/4 cup nutritional yeast
- 1 tablespoon soy sauce
- 1/2 cup crispy fried onions
Instructions
- Blanch the green beans in boiling water for 3-4 minutes, then transfer to ice water to stop cooking.
- In a large skillet, sauté the mushrooms with olive oil over medium heat for 5-7 minutes until softened.
- Add the minced garlic and cook for an additional minute.
- Stir in the flour and cook for 2 minutes, then add vegetable broth and coconut milk. Whisk until smooth.
- Add soy sauce and nutritional yeast, then simmer for 5 minutes until the sauce thickens.
- Add the blanched green beans to the mushroom sauce, mixing until the beans are evenly coated.
- Transfer the mixture to a greased 9×13-inch baking dish, spreading evenly.
- Top with crispy fried onions and bake at 350°F (175°C) for 20-25 minutes until bubbly and golden brown.
Notes
- You can prepare this casserole ahead of time and refrigerate it before baking.
- Frozen green beans can be used instead of fresh, but make sure they are thawed and drained well.
- If you prefer a spicier dish, add a pinch of red pepper flakes to the sauce.
- For a gluten-free version, use gluten-free flour to thicken the sauce and ensure the crispy onions are gluten-free.
Nutrition
- Serving Size: 1/6 of the casserole
- Calories: 210
- Sugar: 4g
- Sodium: 350mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 6g
- Protein: 4g
- Cholesterol: 0mg
