Vegan Green Bean Casserole

Step 1

Heat the oven to 350 degrees and oil a 3-quart baking dish.

Step 2

Fill a large pot with water. Add 1 tablespoon salt to the water and bring to a boil. Add the green beans and boil for 4 minutes (or 3 minutes if you are using French beans). Drain the green beans and rinse them under cold running water. Give them a shake to remove excess water, then cut them into 2-inch pieces. Transfer the cut green beans to the baking dish.

Step 3

Heat the butter in a 12-inch skillet over medium heat. Add the mushrooms and shallots. Cook for 5 minutes, or until the mushrooms have released their juices and are reduced in size. Stir frequently to prevent the shallots from burning. Add the garlic and cook the mushrooms for another 3 minutes, stirring as you go.

Step 4

Place the flour in a small bowl and add 1/4 cup of the non-dairy milk. Whisk together to create a slurry.

Step 5

Pour the remaining 1 3/4 cups non-dairy milk into the skillet with the mushrooms. Stir in the slurry, 2 teaspoons kosher salt and the black pepper. Bring the liquid to a simmer and reduce the heat to low. Cook, stirring occasionally, for 4 to 5 minutes, or until the sauce has thickened enough to coat the back of a spoon.

Step 6

Pour the mushroom sauce over the green beans and give it a gentle stir to coat. Top with the fried onions. Cover the baking dish with foil and bake for 20 minutes. Remove the foil and bake for another 10 minutes, or until the onions turn a deep golden brown and the sauce is bubbling. Allow the casserole to cool for 15 minutes before serving.