The Absolute Best Homemade Green Bean Casserole From Scratch
These Sophisticated green beans put an elevated twist on the classic green bean casserole. The Best homemade mushroom cream sauce drizzled over fresh green beans and caramelized mushrooms. Seriously, so incredibly delicious!
- Prep Time: 20 minutes
- Cook Time: 30
- Total Time: 1 hour
- Category: side dish, vegetarian, holiday dish, casserole. comfort food
- Method: oven
- Cuisine: side dish, vegetarian, holiday dish, casserole. comfort food
Ingredients
- 2 teaspoon salt
- 1 lb fresh green beans, ends trimmed
- 1 teaspoon Worcestershire sauce
- 3 Tbsp olive oil, divided
- 2 cups crimini sliced mushrooms, divided
- 1 teaspoon freshly ground black pepper
- 1 large shallot, minced
- 1 tablespoon garlic, minced
- 1/4 teaspoon freshly ground nutmeg
- 1/2 teaspoon dill
- 1 cup vegetable broth
- 4 tablespoon cornstarch
- 1 cup heavy cream
- A large bowl of ice water
Instructions
- Bring a 1/2 gallon of water (at least 6-8 cups) and 2 teaspoon of salt to a boil in a saucepan. You really want the beans to swim freely in the water. Add the beans and boil for 5 minutes. Drain in a colander and immediately plunge the beans into a large bowl of ice water to stop the cooking. Remove the beans from the ice water after 2 minutes and place back into the colander to drain.
- Preheat oven to 350F, rack in the middle. Take 1 cup of the mushrooms and chop into small pieces. Place a medium non-stick skillet over medium-high heat. Add in 1 tablespoon of oil. When the oil starts to shimmer add the 1 cup of chopped mushrooms and cook, stirring occasionally, until the mushrooms begin to give up some of their liquid, approximately 4 to 5 minutes. Remove the mushrooms from the pan and set aside.
- In the same pan add 1 tablespoon of oil. Add in the garlic, shallots, nutmeg, 1 teaspoon salt, and pepper. Cook until the shallots are soft. About 3-5 minutes. Add in the cooked mushrooms. Add in the broth and simmer for one minute. Decrease the heat to medium-low. Make a slurry of the cornstarch and cream in a cup. Add to the mushroom mixture. Cook until the mixture thickens, stirring occasionally, approximately 6 to 8 minutes. Add in the dill and taste for seasoning. Remove from the heat and set aside.
- On a lightly sprayed oven-proof serving dish line the green beans down the center. Ladle the mushroom sauce down the center of the green beans leaving the ends exposed. Bake for 15-20 minutes or until the mixture bubbles. While the mixture is baking, place a medium non-stick skillet over medium-high heat. Add 1 tablespoon of oil and heat for a minute. Add the remaining cup of sliced mushrooms and gently stir to coat. After 3 minutes of cooking, add in 1/2 teaspoon of salt and 1 teaspoon Worcestershire sauce; stir. Cook for about 5 minutes per side or until all the mushrooms are golden brown and release their liquid. When the green beans in the oven are done, remove from the oven and top with the sautéed mushrooms. Serve or if you wish to add the crispy onions, see the Notes for more details.
Notes
If you wish to garnish these with the crispy onions, as soon as you place the sauteed mushrooms on top, place some of the onions on top of those and pop the plate back in the oven for about 3 minutes or until the onions have turned golden brown and crispy.