The Best Vegan Green Bean Casserole

For me, Thanksgiving has always meant family, football, and an overflowing table laden with comforting dishes. But there’s one dish that evokes the most poignant memories: my grandmother’s green bean casserole. As a child, I’d sneak spoonfuls straight from the baking dish, savoring the creamy mushroom sauce and the satisfying crunch of the fried onions. It wasn’t until later, when I embraced a vegan lifestyle, that I had to recreate that nostalgic favorite – and I’m thrilled to say, this version captures all the magic of the original, without any animal products.

Recipe Overview

• Prep Time: 20 minutes
• Cook Time: 30 minutes
• Total Time: 50 minutes
• Servings: 6
• Dietary Type: Vegan

Ingredients

Beans

• 2 quarts water
• 1 tablespoon table salt
• 1 1/2 lbs fresh green beans, trimmed and cut into bite-size pieces

Sauce

• 10 ounces regular button and shiitake mushrooms
• 3 garlic cloves, minced
• 1 pinch cayenne pepper
• 1 pinch salt, to taste
• 1 pinch fresh pepper, to taste
• 2 teaspoons flour
• 3/4 cup vegetable broth (Imagine No Chicken)
• 1 tablespoon dry sherry
• 3/4 cup milk substitute (soy creamer or full-fat unsweetened soy milk)

Topping

• 1 1/2 slices whole grain bread
• 1 tablespoon Earth Balance margarine
• 1/8 teaspoon salt
• 1/16 teaspoon freshly ground black pepper
• 1 (3 ounce) can fried onions (French’s fried onions)

Equipment Needed

• Large pot
• Colander
• Non-stick pan
• Whisk
• Food processor
• Casserole dish (oiled)

Instructions

1. Begin by preparing the green beans. In a large pot, bring the water to a boil. While the water is heating, trim the ends off of the green beans and cut them into bite-size pieces.
2. Once the water is boiling, add the salt and the green beans. Cover the pot and cook the beans for 6 minutes.
3. Drain the cooked green beans in a colander. Immediately after draining, spray the beans for a minute with cold water to stop the cooking process and maintain their vibrant color. Let the green beans drain thoroughly in the colander, shaking occasionally to remove excess water.
4. Now, let’s create the flavorful mushroom sauce. Trim and discard the stems of the mushrooms. Chop the mushrooms into evenly sized pieces.
5. Spray a non-stick pan with canola oil (or another cooking oil of your choice) and heat it over medium heat. Add the chopped mushrooms, minced garlic, cayenne pepper, salt, and pepper to the pan.
6. Cook the mushroom mixture until the mushrooms are very soft and have exuded their juices. This will take about 8-10 minutes, stirring occasionally.
7. In a separate bowl, whisk the flour into the vegetable broth until there are no lumps. Pour this mixture into the pan with the mushrooms, along with the dry sherry.
8. Simmer, stirring constantly, until the sauce thickens. This typically takes a few minutes.
9. Add the soy creamer (or full-fat unsweetened soy milk) to the pan. Continue to simmer until the sauce reaches your desired thickness, approximately 5 to 10 minutes. Be sure to stir frequently to prevent sticking.
10. Taste the sauce and adjust the seasonings as needed, adding more salt, pepper, or cayenne pepper to your preference. Stir in the drained green beans, ensuring they are fully coated in the delicious mushroom sauce.
11. While the sauce is simmering, prepare the topping. Place the whole grain bread, Earth Balance margarine, salt, and pepper into a food processor.
12. Pulse the mixture until it forms a crumbly texture.
13. Pour the breadcrumb mixture into a bowl and add the can of fried onions. Gently stir to combine, ensuring the fried onions are evenly distributed throughout the breadcrumbs.
14. To assemble the casserole, lightly oil a casserole dish. Pour the green bean and mushroom mixture into the prepared dish.
15. Evenly sprinkle the onion and breadcrumb topping over the green bean mixture.
16. Bake the casserole in a preheated oven at 425°F (220°C) for about 15 minutes, or until the topping is golden brown and the casserole is heated through.
17. If you are not serving the casserole immediately, refrigerate the topping separately to maintain its crispness. Before baking, bring the topping to room temperature, then sprinkle it over the casserole and bake for approximately 20 minutes, or until heated through.

Expert Tips & Tricks

• For a deeper mushroom flavor, consider using dried shiitake mushrooms in addition to fresh ones. Rehydrate the dried mushrooms in hot water, then chop and add them to the sauce.
• To avoid a soggy topping, ensure the green beans are well-drained and the sauce is not too watery before assembling the casserole.
• If you don’t have a food processor, you can use a grater to create breadcrumbs. Alternatively, crush the bread in a plastic bag using a rolling pin.
• If you want to make this ahead of time, assemble the casserole (without the topping) and refrigerate it. Add the topping just before baking.
• For a richer sauce, try adding a tablespoon of vegan cream cheese (like Tofutti) at the end of the simmering process.

Serving & Storage Suggestions

Serve the Vegan Green Bean Casserole hot, straight from the oven. It pairs perfectly with other Thanksgiving classics like mashed potatoes, stuffing, and cranberry sauce.

Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. For longer storage, the casserole can be frozen for up to 2 months. Thaw it in the refrigerator overnight before reheating.

To reheat, bake in a preheated oven at 350°F (175°C) until heated through. Alternatively, you can microwave individual portions. If the topping loses its crispness during reheating, you can broil it for a minute or two, keeping a close eye to prevent burning.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	175 kcal	9%
Total Fat	9g	12%
Saturated Fat	3g	15%
Cholesterol	0mg	0%
Sodium	650mg	28%
Total Carbohydrate	21g	8%
Dietary Fiber	6g	24%
Sugars	7g	–
Protein	6g	12%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Gluten-Free: Use gluten-free bread for the topping and ensure your vegetable broth is gluten-free. You can also use a gluten-free flour blend to thicken the sauce.
• Coconut Milk: Substitute the soy creamer with full-fat coconut milk for a richer, slightly sweeter flavor.
• Different Vegetables: Add other vegetables to the casserole, such as sauteed onions, diced carrots, or peas.
• Spicy Kick: Add a finely chopped jalapeno pepper to the mushroom mixture for an extra kick of heat.
• Herbaceous: Mix fresh herbs like thyme or rosemary into the topping for added flavor.

FAQs (Frequently Asked Questions)

Q: Can I use frozen green beans instead of fresh?
A: While fresh green beans provide the best texture and flavor, frozen green beans can be used in a pinch. Be sure to thaw and drain them thoroughly before adding them to the sauce.

Q: How can I make the topping crispier?
A: Ensure the breadcrumbs are evenly coated with margarine and that the topping is spread in a thin, even layer over the casserole. Baking at a slightly higher temperature (450°F) for the last few minutes can also help.

Q: Can I use different types of mushrooms?
A: Absolutely! Feel free to experiment with different types of mushrooms, such as cremini, oyster, or maitake. A blend of different mushrooms will add complexity to the flavor.

Q: My sauce is too thin. How can I thicken it?
A: If the sauce is too thin, whisk a small amount of cornstarch with cold water and add it to the simmering sauce. Stir continuously until the sauce thickens.

Q: Can I make this without the fried onions?
A: If you prefer, you can omit the fried onions or replace them with homemade crispy onions. Thinly slice onions, toss them with flour and spices, and fry them until golden brown.

Final Thoughts

This Vegan Green Bean Casserole is more than just a recipe; it’s a way to share a piece of my heart and a cherished family tradition with you. I encourage you to try this recipe and create your own memories around this comforting dish. Don’t be afraid to experiment with variations and substitutions to make it your own. And most importantly, share it with loved ones and savor every delicious bite. Whether you’re serving it as a side dish at Thanksgiving or as a comforting meal any time of year, I hope this recipe brings you as much joy as it has brought me.