Elegant Green Bean and Mushroom Casserole
Elevate your holiday table or weeknight dinner with this *Elegant Green Bean and Mushroom Casserole*, a refined twist on a classic comfort food. Featuring tender-crisp fresh green beans tossed in a luscious homemade mushroom cream sauce, this dish is a symphony of rich, earthy flavors. Sautéed cremini mushrooms, minced garlic, and Parmesan cheese shine in this recipe, while a golden, crunchy panko breadcrumb topping adds the perfect textural contrast. For extra indulgence, a sprinkle of crispy fried onions takes it to the next level. Ready in under an hour, this casserole is easy to prepare yet sophisticated enough to impress. Perfect as a flavorful Thanksgiving side dish or a standout addition to your family meals, this recipe captures the essence of creamy, savory, and satisfying comfort food.
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Recipe Information
Ingredients
- 1 pound fresh green beans
- 3 tablespoons unsalted butter
- 8 ounces cremini mushrooms, sliced
- 3 cloves garlic, minced
- 2 tablespoons all-purpose flour
- 1 cup chicken or vegetable broth
- 1 cup heavy cream
- 1 cup grated Parmesan cheese
- 0.5 teaspoons ground black pepper
- 1 teaspoon salt
- 1 cup panko breadcrumbs
- 2 tablespoons olive oil
- 0.5 cup crispy fried onions (optional)
Instructions
Preheat your oven to 375°F (190°C). Grease a 9x13-inch casserole dish and set it aside.
Trim the ends of the green beans and blanch them in a large pot of boiling salted water for 3–4 minutes, or until they are tender-crisp. Drain and transfer them to an ice water bath to stop the cooking, then drain again and set aside.
In a large skillet, melt the butter over medium heat. Add the sliced cremini mushrooms and cook for 5–7 minutes, stirring occasionally, until the mushrooms release their moisture and begin to brown.
Add the minced garlic to the skillet and cook for another 1–2 minutes, until fragrant.
Sprinkle the flour over the mushrooms and garlic, stirring constantly to form a roux. Cook for 1–2 minutes.
Gradually pour in the chicken or vegetable broth, whisking continuously to avoid lumps. Follow with the heavy cream, stirring until the sauce thickens and becomes smooth, about 3–4 minutes.
Stir in the grated Parmesan cheese, black pepper, and salt. Adjust seasoning to taste, then remove the skillet from the heat.
Add the blanched green beans to the skillet with the mushroom sauce and toss to coat evenly. Transfer the mixture into the prepared casserole dish, spreading it out in an even layer.
In a small bowl, combine the panko breadcrumbs and olive oil. Sprinkle this mixture evenly over the top of the casserole. If desired, add crispy fried onions on top for extra crunch and flavor.
Bake the casserole in the preheated oven for 20–25 minutes, or until the top is golden brown and the casserole is bubbling at the edges.
Remove from the oven and let cool for 5 minutes before serving. Enjoy this elegant side dish!
Nutrition Facts
Calories |
447 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 31.9 g | 41% | |
| Saturated Fat | 15.8 g | 79% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 70 mg | 23% | |
| Sodium | 891 mg | 39% | |
| Total Carbohydrate | 27.4 g | 10% | |
| Dietary Fiber | 3.5 g | 13% | |
| Total Sugars | 5.0 g | ||
| Protein | 11.1 g | 22% | |
| Vitamin D | 0.2 mcg | 1% | |
| Calcium | 199 mg | 15% | |
| Iron | 2.0 mg | 11% | |
| Potassium | 339 mg | 7% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
