An awesome dish if prepared correctly! The most important thing when preparing this dish is not to overcook the beans. They tend to lose their beautiful green color and get brown and mushy when overcooked. To add more texture, try topping the casserole with caramelized onions mixed with sesame seeds and chopped cashews.

Green Bean Mushroom Casserole [Vegan]

Save Trees. Print Less. But if you must, we charge $2.99 to encourage less waste

Cooking Time



For the Casserole:

  • 1 cup raw cashews, soaked for 2+ hours
  • 1/2 cup coconut milk (or water)
  • 1 tablespoon coconut or avocado oil
  • 24 ounces (or 3 cups packed) sliced mushrooms
  • 4-5 garlic cloves, grated or minced
  • 4 sprigs of fresh thyme leaves (or 2 teaspoons dried thyme)
  • 2 pounds fresh green beans, trimmed and halved
  • 1 cup vegetable stock (or water)
  • Sea salt and black pepper, to taste

For the Crunchy Onion Topping:

  • 1 tablespoon coconut or avocado oil
  • 1 large onion, thinly sliced
  • 1/2 teaspoon turmeric powder
  • 2 tablespoons sesame seeds
  • 1/4 cup cashews, chopped
  • Pinch of sea salt


  1. Rinse and drain the soaked cashews and add them to a blender with coconut milk (or water) and blend until smooth and creamy, then set aside.
  2. For the Crunchy Onion Topping: Heat oil in a large pan on medium. Add onions and cook, stirring frequently, for about 5-7 minutes until they turn golden brown and translucent. Add a splash of water if they start sticking to the pan. Then add turmeric, sesame seeds, chopped cashews, and sea salt, mix, and set aside. Heat another tablespoon of oil in the same pan over medium, add mushrooms, and cook for about 5 minutes until all juices are released and mushrooms brown.
  3. Reduce heat to medium-low, add garlic, thyme, and a splash of water and stir for another minute.
  4. Add the green beans and vegetable stock or water, season with sea salt and pepper, cover, and cook for 10-15 minutes, until beans are tender but not too soft and mushy. Then stir in the cashew sauce and mix to fully combine.
  5. Pour the mixture into a casserole dish, top with the crunchy onion topping, and place in the oven on broil for about 4 minutes until slightly brown on top (optional). Let it cool for 10 minutes and enjoy!


    This site uses Akismet to reduce spam. Learn how your comment data is processed.