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Casserole dish of green beans topped with crispy shallots.

Best Ever Green Bean Casserole

Course: Side Dish
Cuisine: American
Keyword: green bean casserole, Thanksgiving side dish, green beans
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 8
Calories: 256kcal
Author: Laureen King
Best Ever Green Bean Casserole is an exceptional Holiday side dish recipe.
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Ingredients

  • 1 ½ pounds fresh green beans
  • 1 pound mushrooms sliced
  • 1 medium onion diced
  • 1 medium red bell pepper diced
  • 6 tablespoons butter
  • 1 teaspoon kosher salt
  • ½ teaspoon fresh ground pepper
  • 6 tablespoons all purpose flour
  • 2 cups milk
  • pinch cayenne pepper
  • pinch nutmeg
  • 1 cup grated Parmesan cheese
  • ¼ cup bread crumbs
  • ¼ cup vegetable oil for deep frying shallots
  • 4-6 shallots sliced thin

Instructions

  • Prepare the green beans. Bring a large saucepan of water to a boil. Add the green beans and cook just until tender. (3-4 minutes)
  • Fill a large bowl with ice water. Remove green beans from the cooking pot and immediately plunge into ice bath to stop the cooking process. Drain, set aside.
  • Melt 2 tablespoons of butter in a large skillet, add onion and sauté until softened. (about 5 minutes)
  • Add red bell pepper and mushrooms. Season with salt and pepper. Cook until softened and liquid has evaporated.
  • Stir the red peppers and mushrooms into the green beans. Set aside.
  • Melt 4 tablespoons of butter in a medium saucepan.
  • Whisk in 4 tablespoons of flour. Whisk constantly until mixture begins to turn golden brown, about 2 minutes.
  • Slowly pour in the milk while continually whisking. Cook medium heat until mixture has thickened. Constantly whisking.
  • Stir in cayenne pepper and nutmeg.
  • Remove from heat and let cool to room temperature, stir occasionally.
  • Pour sauce over the green bean- mushroom mixture. Toss to combine.
  • Grease a 2 litre casserole dish with butter. Spread half of the green bean mixture in the baking pan.
  • Sprinkle ½ cup grated parmesan on top. Top with the remaining green bean mixture.
  • Combine together ½ cup parmesan cheese and bread crumbs.
  • Sprinkle over top of the casserole.
  • Cover with foil. Bake in oven at 350º Fahrenheit for 20-30 minutes until casserole is bubbly and heated through.
  • Uncover casserole and bake under broiler until top is golden brown.
  • Prepare the crispy shallots. Heat vegetable oil in medium skillet, toss the shallots with 2 tablespoons of flour. Fry in oil until golden brown.
  • Sprinkle the casserole with crispy shallots and serve.

Notes

If using frozen green beans, prepare the same as the fresh green beans but only cook 2-3 minutes. 

Nutrition

Calories: 256kcal | Carbohydrates: 23g | Protein: 11g | Fat: 15g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.3g | Cholesterol: 41mg | Sodium: 636mg | Potassium: 584mg | Fiber: 4g | Sugar: 9g | Vitamin A: 1523IU | Vitamin C: 33mg | Calcium: 238mg | Iron: 2mg