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Creamy green bean casserole topped with crispy fried onions in a baking dish

Green Bean Casserole

A classic dish that combines fresh green beans with creamy mushroom sauce and crispy onions, perfect for family gatherings or weeknight dinners.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 8 servings
Course: Casserole, Side Dish
Cuisine: American
Calories: 275
Ingredients Method Notes

Ingredients
  

For the Green Bean Casserole
  • 750 g 750g green beans Trimmed and halved
  • 360 g 360g mushrooms Chopped into 1cm pieces
  • 2 large 2 large yellow onions Peeled, halved, and thinly sliced
  • 3 tbsp 3 tbsp unsalted butter Adds richness to the mushroom sauce
  • 1.5 cups 1 1/2 cups vegetable or chicken broth Adds depth and moisture to the sauce
  • 1/2 cup 1/2 cup cream Heavy or thickened for richness
  • 2 cloves 2 garlic cloves Minced for flavor
  • 1/4 cup 1/4 cup flour For coating the onions
  • 2 tbsp 2 tbsp panko breadcrumbs Adds crunchiness
  • 1/4 tsp 1/4 tsp black pepper For seasoning
  • 1/2 tsp 1/2 tsp salt For seasoning
  • 3 tbsp 3 tbsp flour Used to thicken mushroom sauce
  • pinch Pinch of nutmeg For flavor
  • 4 cups 4 cups vegetable oil For frying the onions
  • 3/4 tsp 3/4 tsp salt For seasoning the mushroom mix

Method
 

Preparation
  1. Boil the green beans for about 3 minutes until just tender. Drain and run under cold water, then pat dry.
  2. Toss the sliced onions with flour, panko breadcrumbs, salt, and pepper until well coated.
Frying the Onions
  1. Heat about 2cm of oil over medium-high heat. Fry the onions in small batches for about 1.5 minutes or until lightly golden. Drain on paper towels.
Cooking the Mushrooms
  1. Melt the butter over medium-high heat and add the chopped mushrooms. Cook for about 1 minute, then add salt, pepper, and minced garlic. Cook until the garlic is golden.
Making the Mushroom Sauce
  1. Stir in the flour, then gradually pour in half the broth while stirring. Once smooth, add remaining broth and cream, then stir in the nutmeg. Cook until thickened, about 5 minutes.
Combining and Baking
  1. Preheat the oven to 350°F/180°C. Combine the green beans and mushroom sauce in the pot. Transfer to a casserole dish, top with fried onions, and bake for 15 minutes.
Serving
  1. Serve hot and enjoy!

Notes

For extra crunch, mix grated cheese with the panko breadcrumbs before frying. You can also prepare the sauce and onions a day ahead. Serve with meats or sides like mashed potatoes.