Homemade Green Bean Casserole
A classic holiday side dish, this homemade green bean casserole will blow you away with it's mouthwatering, umami flavor and balance of textures. This recipe is easy to follow, requires less than 10 ingredients, and includes both vegan and vegetarian options.
Ingredients
- 1 lb. green beans cut into 2 inch pieces
Cream of Mushroom
- 5 oz. mushrooms finely chopped
- 1 onion diced
- 4 cloves garlic minced
- 2 tbsp liquid aminos or soy sauce
- 2 tbsp nutritional yeast
- 1/4 tsp salt
- 1/4 tsp ground thyme
- 1/8 tsp black pepper
- 1/4 cup all purpose flour
- 2 cups oat milk
Crispy Fried Onions
- 4 cups vegetable oil
- 1 large onion thinly sliced
- 1 cup oat milk or buttermilk
- 1 tsp apple cider vinegar omit if using buttermilk
- 1 cup all purpose flour
- 1 tsp salt
- 1/4 tsp black pepper
Instructions
Prep Crispy Fried Onions
- Heat 4 cups vegetable oil to 375°F in a large pot for frying.
- In a medium bowl, combine oat milk and apple cider vinegar and mix vigorously until it becomes frothy at the top. (If using real buttermilk, just pour it in a medium bowl.)
- In a separate medium bowl, combine flour, salt and pepper.
- Working in small batches, soak the sliced onions in the milk for a couple minutes, then toss them in the flour mixture and carefully transfer them into the frying oil.
- Fry the battered onions for 4-5 minutes, or until they are a light, golden brown.
- Carefully remove the onions using a spider strainer and place them on plate lined with a paper towel. Set aside.
Make the Casserole
- Preheat oven to 375°F and bring a large pot of water to boil.
- Blanch green beans for 2 minutes, then drain and set them aside.
- Meanwhile, heat a large skillet over medium heat. Sauté onions for 2-3 minutes with a splash of water to prevent them from sticking.
- Add mushrooms, garlic, and seasonings and sauté another 5-6 minutes.
- Add liquid aminos to deglaze the pan and scrape off all the browned bits stuck to the bottom.
- Add the flour and toss to coat the veggies. Then, slowly whisk in the milk and stir until there are no chunks left.
- Bring mixture to a gentle boil and simmer 4-5 minutes to allow it to thicken.
- Remove pan from heat, stir in green beans so they are completely coated in cream of mushroom mixture.
- Transfer to a 9"x 5" baking dish and sprinkle crispy fried onions in an even layer on top.
- Bake 25 minutes, checking at the 20 minute mark to make sure crispy onions don't burn.