Ingredients
12 servings
- •2 lb green beans, trimmed
- •8 tablespoons unsalted butter, 1 stick, divided
- •2 medium white onions, thinly sliced
- •1 ½ lb cremini mushroom, sliced and stemmed
- •5 cloves garlic, sliced
- •3 tablespoons all-purpose flour
- •1 cup milk
- •½ cup heavy cream
- •2 teaspoons kosher salt
- •1 teaspoon freshly ground black pepper
- •1 cup chicken broth, or vegetable broth
- •½ cup grated parmesan cheese
- •1 cup store-bought fried onions
Instructions
- Preheat the oven to 400˚F (200˚C).
- In a large pot of salted boiling water, blanch the green beans for 3 minutes, until tender and bright green. Drain and transfer to a 9x13-inch (23x33 cm) baking dish.
- Melt 4 tablespoons of butter in a large pan over high heat. Add the onions and cook for 8 minutes, until softened and translucent.
- Add the mushrooms and cook for 5 minutes, until browned. Add the garlic and cook just until fragrant, about 1 minute.
- Transfer the vegetable mixture to the casserole dish with the green beans. Wipe out the pan.
- Melt the remaining 4 tablespoons of butter in the same pan. Add the flour and stir to combine. Cook until a golden brown roux forms, for 5 minutes.
- Add the milk, heavy cream, salt, pepper, chicken broth, and Parmesan cheese, and stir to combine. Reduce the heat to medium-low and cook until the sauce is thickened, about 10 minutes.
- Pour the sauce evenly over the vegetables in the casserole dish and toss until everything is well coated. Cover with foil.
- Bake for 20 minutes, then remove the foil and bake for another 10 minutes.
- Top the casserole with the fried onions, then serve.
- Enjoy!
Nutritional Facts
Per 12 servings
- Calories: 291
- Carbohydrate: 22g
- Fat: 20g
- Fiber: 11g
- Protein: 9g
- Sugar: 7g