Green Bean Casserole Recipe with French Onion Flavor

Green Bean Casserole Recipe combines rich, savory flavors with a crispy, cheesy topping, making it the perfect side dish. Sweet caramelized onions, a creamy white sauce, and tender green beans come together for a comforting, flavorful meal.

Ingredients for this Green Bean Casserole Recipe:

For the onions:

• 2 tablespoons butter
• 2 large yellow onions, thinly sliced lengthwise
• Salt and ground black pepper to taste
• 1 tablespoon sherry vinegar

For the white sauce:

• 2 tablespoons butter
• 2 ½ tablespoons all-purpose flour
• 2 ½ cups milk
• 1 pinch ground nutmeg
• 1 pinch cayenne pepper to taste
• ¼ teaspoon ground thyme

For the topping:

• 2 tablespoons melted butter
• ⅔ cup panko bread crumbs
• 2 pounds fresh green beans, trimmed
• 4 ounces shredded Gruyere cheese, divided
• ⅓ cup grated Parmesan cheese

Directions for this Green Bean Casserole Recipe:

1. Cook the Onions:
   In a large skillet, melt 2 tablespoons of butter over medium heat. Add the sliced onions, seasoning with salt and pepper. Cook, stirring occasionally, until the onions are caramelized and golden brown, about 20-25 minutes. Stir in the sherry vinegar and cook for another 2-3 minutes until the vinegar is absorbed. Set the onions aside.
2. Make the White Sauce:
   In a medium saucepan, melt 2 tablespoons of butter over medium heat. Whisk in the flour and cook for 1-2 minutes until it forms a paste. Slowly pour in the milk while whisking constantly to avoid lumps. Add the nutmeg, cayenne pepper, and thyme. Cook, stirring frequently, until the sauce thickens, about 5-7 minutes. Season with salt and pepper to taste.
3. Prepare the Topping:
   In a small bowl, combine the melted butter and panko bread crumbs. Set aside.
4. Cook the Green Beans:
   Bring a large pot of salted water to a boil. Add the green beans and cook for about 4-5 minutes until tender-crisp. Drain the green beans and transfer them to a 9×13-inch baking dish.
5. Assemble the Casserole:
   Preheat your oven to 350°F (175°C). Pour the white sauce over the cooked green beans and stir to coat. Add the caramelized onions on top of the green beans, then sprinkle with 3 ounces of shredded Gruyere cheese and the grated Parmesan cheese. Top the casserole with the panko bread crumbs mixture.
6. Bake:
   Place the casserole in the preheated oven and bake for 20-25 minutes, until the top is golden brown and bubbly. Sprinkle the remaining Gruyere cheese on top in the last 5 minutes of baking.
7. Serve:
   Remove from the oven and let cool for a few minutes before serving.

Nutrition (per serving, approx. 6 servings):

• Calories: 320
• Fat: 20g
• Carbohydrates: 28g
• Protein: 12g
• Fiber: 5g
• Sodium: 450mg

Prep Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes

Enjoy your delicious and comforting Green Bean Casserole Recipe!

Source: www.allrecipes.com