The simple act of switching out milk products with a few vegan staples in this traditional holiday dish will make everyone feel welcome (and well-fed) at your table. A thick oat milk and vegan butter for the cream sauce are the only swaps. This recipe calls for pan roasting the slender French green beans first, with hen-of-the-woods mushrooms, shallots and garlic. Roasted green beans bring a sophisticated, intensified savoriness to the casserole’s end result. Delight every holiday guest with this completely plant-based, completely delicious classic vegetable dish!

Roasted Green Bean and Mushroom Casserole (Vegan)
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 12
Calories 193 kcal
Ingredients
- 2-1/2 lbs. French green beans haricots verts, trimmed
- 1 lb. hen-of-the-woods mushrooms roughly chopped
- 2 large shallots halved lengthwise and thinly sliced
- 4 cloves garlic minced
- 2 Tbsp. extra virgin olive oil
- Salt to taste
- Black pepper to taste
- Olive oil cooking spray
Sauce
- 2 Tbsp. plant-based butter
- 2 Tbsp. gluten-free all-purpose flour
- 1 qt. plant-based barista-blend milk or plant-based cream
- 1/2 tsp. onion powder
- 1/2 tsp. garlic powder
- 1 tsp. salt
- 1/2 tsp. black pepper
- 1/4 tsp. cayenne pepper optional
- 1/2 vegetable bouillon cube
- 2 cups fried onions
Instructions
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Heat oven to 400 degrees F. Coat 9x13-inch baking dish with olive oil spray.
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On sheet pan, toss together green beans, mushrooms, shallots, garlic, olive oil, salt and pepper and spread out evenly on pan.
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Roast 15 minutes, toss and roast for another 15 minutes. (Note: This will soften beans.)
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In medium-sized sauce pan, melt vegan butter and add flour. Cook for 1-2 minutes, whisking constantly until it comes together. Add milk/cream and whisk until sauce begins to thicken, about 5-6 minutes.
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Add onion powder, garlic powder, bouillon cube, salt, pepper and cayenne, if using. Whisk to combine.
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In baking dish, combine vegetables and sauce, mixing to coat vegetables. Spread fried onions on top.
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Set broiler on high and broil 1-2 minutes until onions become golden and crispy.
Nutrition Facts
Roasted Green Bean and Mushroom Casserole (Vegan)
Amount Per Serving
Calories 193
Calories from Fat 90
% Daily Value*
Fat 10g15%
Saturated Fat 3g15%
Trans Fat 0.01g
Polyunsaturated Fat 1g
Monounsaturated Fat 2g
Sodium 333mg14%
Potassium 426mg12%
Carbohydrates 24g8%
Fiber 5g20%
Sugar 10g11%
Protein 5g10%
Vitamin A 972IU19%
Vitamin C 12mg15%
Calcium 158mg16%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.